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【单选题】
红细胞生成素是由那个器官分泌的A.
肾上腺
B.
肾脏
C.
下丘脑
D.
垂体
E.
甲状腺
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【简答题】People all over the world celebrate the new year. However, not al countries celebrate in the same way, in some countries, the new year doesn't begin on 1 date very year. In many countries, the new yea...
【单选题】It's pay-day, and they're waiting _________ .
A.
to be paid
B.
to have paid
C.
to be paying
D.
for paying
【简答题】Athletic shoes. You work in them. You play in them. You want them to look and feel great. New Speedies are the right shoes for you. They're ______ (light) other athletic shoes. And that means you'll b...
【单选题】My mother asked me to repeat ________ phone number ________ second time so that she could write it down.
A.
the; a
B.
a; a
C.
a; the
D.
the; the
【单选题】They're motionless , waiting for the performance to start.
A.
melodious
B.
restless
C.
relaxed
D.
not moving
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