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【单选题】
1957年10月4日，( )发射了世界上第一颗人造卫星。A.
英国
B.
美国
C.
苏联
D.
德国
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皮皮学刷刷变学霸
举一反三
【单选题】— I can't understand why my mother always keeps me hard at my work. — When you ____ children of your own, you will understand. [ ]
A.
will have
B.
are having
C.
have had
D.
have to have
【简答题】催化重整的目的是制取（）和（）并副产（）。
【单选题】I can't understand why my boss is always _____fault with my work.
A.
finding
B.
seeking
C.
looking
D.
making
【简答题】vi. (~ to / with) obey sth. such as a rule or law 遵照;遵守;服从
【单选题】听力原文：W: I can't understand why my friend isn't here yet. We agreed to meet at 10:30. It's almost 11:00. Do you think we should try to call her or go look for her? M: She probably just got tied up in t...
A.
Check the time of high tide.
B.
Go stand under the clock.
C.
Wait a little longer.
D.
Look for the traffic light.
【简答题】I understand why my associate is being held,but what exactly am I being charged with?
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