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[单选题]

Only when you have collectd sufficient data,____cone to a sound conclusion.

A.you can

B.you will

C.can you

D.did you

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更多“Only when you have collectd su…”相关的问题

第1题

Only when you have a large vocabulary___read fast.

A.you will

B.you can

C.can you

D.can’t you

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第2题

Only when you have completed the basic English course ______ be permitted to take the adva

nced courses.

A．you can

B．can you

C．you will

D．that you

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第3题

Only when you have acquired a good knowledge of grammar ______ write correctly.

A.you will

B.you can

C.can you

D.you can’t

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第4题

"__________ you know what you have to offer and what you want, you can start finding an employer to match."

A. Much as

B.Once

C. Only when

D. Even if

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第5题

【D10】DOCTOR: WHAT HAS BEEN BOTHERING YOU？ PATIENT: I HAVE A STUFFY NOSE AND A SORE THROAT

【D10】

DOCTOR: WHAT HAS BEEN BOTHERING YOU？ PATIENT: I HAVE A STUFFY NOSE AND A SORE THROAT. PLUS, I" VE BEEN COUGHING A LOT. 【D8】______ DOCTOR: ANY STOMACH PAINS？ PATIENT: ACTUALLY, YES. MY STOMACH" S BEEN UPSET FOR A FEW DAYS. DOCTOR:【D9】______IT" S BEEN GOING AROUND LATELY. PATIENT: ANYTHING I CAN DO FOR IT？ DOCTOR: I"LL PRESCRIBE SOME MEDICINES FOR YOU TO TAK

E. 【D10】______ PATIENT: DOES THAT MEAN I SHOULDN" T GO TO WORK？ DOCTOR: ONLY WHEN YOU FEEL UP TO IT. YOU SHOULD STAY HOME FOR AT LEAST A DAY OR TWO. A. IT SOUNDS LIKE A FLU.

B. I ALSO ADVISE RESTING FOR A COUPLE OF DAYS.

C. BOY, WHEN IT RAINS, IT POURS.

D. HOW LONG HAVE YOU BEEN LIKE THIS？

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第6题

【D9】DOCTOR: WHAT HAS BEEN BOTHERING YOU？ PATIENT: I HAVE A STUFFY NOSE AND A SORE THROAT.

【D9】

E. 【D10】______ PATIENT: DOES THAT MEAN I SHOULDN" T GO TO WORK？ DOCTOR: ONLY WHEN YOU FEEL UP TO IT. YOU SHOULD STAY HOME FOR AT LEAST A DAY OR TWO. A. IT SOUNDS LIKE A FLU.

B. I ALSO ADVISE RESTING FOR A COUPLE OF DAYS.

C. BOY, WHEN IT RAINS, IT POURS.

D. HOW LONG HAVE YOU BEEN LIKE THIS？

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第7题

Once upon a free a poor farmer taking a sack of wheat to the mill did not know【C1】______to

do when it slipped from his horse and fell【C2】______the road．The sack was【C3】______heavy for him to【C4】______, and his only hope was that【C5】______someone would come riding by and【C6】______a hand. It was not long【C7】______a rider appeared, but the farmers heart sank when he【C8】______him, for it was the great man who lived in a castle nearby. The farmer【C9】______have dared to ask【C10】______farmer to help, or any poor man who might have come【C11】______the road, but he could not beg a【C12】______of so great a man.【C13】______, as soon as the great man came up he got【C14】______his horse, saying "I see youve had bad luck, friend．How good it is【C15】______Im here just at the【C16】______time. "Then he took one【C17】______of the sack, the farmer the other, and between them they lifted it on the horse. "Sir," asked the farmer, "how can I pay you？ " "Easily enough," the great man【C18】______. "Whenever you see【C19】______else in trouble,【C20】______the same for him. "

【C1】

A．how

B．what

C．which

D．whether

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第8题

Even if you are a good high－jumper, you can jump only about seven feet off the ground.

Even if you are a good high-jumper, you can jump only about seven feet off the ground. You cannot jump any higher because the earth pulls you hard. The pull of the earth is called gravity.

You can easily find out the pull of the earth. If you weigh yourself, you will know how much gravity is pulling you.

Since there is gravity, water runs down hill. When you throw a ball into the air, it falls back down. Because of gravity, you do not fall off the earth as it whirls(旋转) around.

Then, can we get away from the earth and go far out into space？ Now you can do it, because spaceships have been invented. Then spaceship will go so fast that it can escape the earth’s gravity and carry you into space.

(1) In this passage, the word “gravity” means_______.

A.the pull of everything.

B.the force of attraction(吸引) among objects.

C.the force which attracts objects towards the centre of the earth

D.the force which attracts the earth towards the sun.

(2) When you slip you always fall to the ground because_______.

A.the earth always turns round.

B.the earth has gravity

C.the earth’s gravity is greater than your weight.

D.you are careless.

(3) Gravity is strong that_______.

A.it can throw a ball into the air.

B.it makes you jump only seven feet.

C.it can let you fly away from the earth.

D.it can keep everything on earth.

(4) Because of gravity,_______.

A.water flows everything.

B.we can go everywhere by ship.

C.water always flows downwards.

D.fish can live in water.

(5) We can get away from the earth by spaceship because_______.

A.the spaceship goes very fast.

B.the earth can’t pull the spaceship.

C.the spaceship has a strong force.

D.the spaceship can jump higher than other things.

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第9题

If you ____only ____it once again!

A.can... do

B.would ... do

C.have ... done

D.will ... do

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第10题

Looking hack on my childhood, I am convinced that naturalists are born and not made. Altho

ugh we were all brought up in the same way, my brothers and sisters soon abandoned their pressed flowers and insects. Unlike them, I had no ear for music and languages. I was not an early reader and I could not do mental arithmetic. Before World War I we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in. of my room and my toys. Nor do I recall clearly the large family of grandparents, aunts, uncles and cousins who gathered next door. But I do have a crystal-clear memory of the dogs, the farm animals, the local birds and, above all, the insects. I am a naturalist, not a scientist. I have a strong love of the natural world, and my enthusiasm has led me into varied investigations. I love discussing my favorite topics and enjoy burning the midnight oil while reading about other people s observations and discoveries. Then something happens that brings these observations together in my conscious mind. Suddenly you fancy you see the answer to the riddle, because it all seems to fit together. This has resulted in my publishing 300 papers and books, of which some might be honored with the title of scientific research. But curiosity, a keen eye, a good memory and enjoyment of the animal and plant world do not make a scientist; one of the outstanding and essential qualities required is self-discipline, a quality I lack. A scientist requires not only self-discipline but hard training, determination and a goal. A scientist, up to a point, can be made. A naturalist is born. If you can combine the two, you get the best of both worlds.

The first paragraph tells us that the author______.

A．was born to a naturalist" s family

B．lost his hearing when he was a child

C．didn" t like his brothers and sisters

D．was interested in flowers and insects in his childhood

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第11题

Erna Hart _______ a good swimmer; she swam across the English Channel when she was on

ly fourteen years old!

A、must be

B、must have been

C、could be