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【简答题】
人体血液循环系统由 、 和 组成。它包括 循环和 循环，两者同时进行，在 处汇合在一起，组成一条完整的循环途径，为人体的组织细胞不断地送来 和 ，又不断地运走 等废物。
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【单选题】There was little water left in the river, ___?
A.
wasn't there
B.
was there
C.
didn't it
D.
did there
【简答题】When he got to _____top of the mountain, he was almost out of______ breath A .the ; a B. the ; the C the; / D. a ; /
【单选题】When he got out of bed, Scobie ______
A.
jumped out like a young man, to show how healthy he was
B.
got out slowly because he was too busy talking
C.
could hardly get out although he suffered badly from rheumatism
D.
got out with difficulty because his bones were stiff and painful
【单选题】He ________ to the lab than he set out to do the experiment.
A.
has no sooner got
B.
no sooner got
C.
will no sooner get
D.
had no sooner got
【单选题】He ______the bus and found a seat next to the window.
A.
got down
B.
got off
C.
got on
D.
got out
【简答题】I. yze the features of the following passages. (1) First, a long glass tube was taken. The tube was closed at the top and was then completely filled with water. Next it was placed vertically in a ...
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