题目内容
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His telescope andhisexperiments were always bringing him new surprises,andhe made notes of his work every day.
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B.That's kind of you.
C.Of course.
D.How are you？
It can be inferred that Saunders' journey to the North Pole ______.
A．was accompanied by his old playmates
B．set a record in the North Pole expedition
C．was supported by other Arctic explorers
D．made him well-known in the 1960s
The author doesn't like eating in the cafeteria because ______.
A．he doesn't want to see his father during lunchtime
B．he wants to get out of the enclosed(被圈住的) atmosphere of the school
C．his mother tells him not to eat there
D．he doesn't like the idea of eating with his friends
A.petrol
B.mineral
C.telescope
D.wire
According to the second paragraph______.
A．a telescope magnifies objects that are far away
B．a telescope makes the stars far away visible but unclear
C．the stars as we see them through a telescope are actually much larger
D．stars are so far away that they are always invisible to the human eye
A．occasionally
B．consequently
C．successively
D．subsequently
A、mirror
B、rose
C、glass box
D、telescope
A.不填; the
B.the; a
C.a; 不填
D.a; the
We learn from the last paragraph that _____ .
A．with the help of a telescope we can observe a star as it actually exists
B．stars can usually exist for millions of years
C．whenever an old star dies, a new star is born
D．the form. in which a star exists may change
A．in common
B．by common
C．under common
D．among common
Hi是GPC谱图的纵坐标读数，在计算组分的质量分数时，通常可以用Wi＝Hi/∑Hi，证明
