When the piston move to its highest position inside the cylinder, we can say it is at
______ makes the piston to move up and down in the engine cylinder.
A pressure changes
B piston head
C atmospheric pressure
D mechanical force
The human body is made to move and it works best when it gets regular exercise.(翻译)
A.body
B.none of the above
C.conclusion
D.introduction
A、head for
B、go towards
C、bound for
D、move to
When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration(迁移) is probably the migration of the fish, which is called " salmon". This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is cold, it returns to its birthplace in fresh water. Then it gives birth and dies there. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move to the seaside and many of them are killed when they fall into the sea.
Recently, scientists have studied the migration of a kind of lobster (龙虾) . Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go.
So, sometimes we know why humans and animals move from one place to another, but at other times we don't. Maybe living things just like to travel.
The majority of animals migrate for______.
A.place
B.safety
C.food
D.warmth
A、Come here!
B、This way, please.
C、Follow me!
D、Move on!
When we finally managed A(to get home) after the B(tiring) long journey, we could C(not hardly) move a step D(further).
A. listen to the breath
B. Move all the clothes
C. watch chest movement
D. transfer the patient to the bed
A、Acceptance
B、Adjustment
C、Depression
D、Culture Shock