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【判断题】
H1N1流感病毒首次于2009年在人类身上发现。A.
正确
B.
错误
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【简答题】V . Fill in the blanks with proper prepositions. (介词填空) (10%) 1. Their achievements have a great effect ______ our lives. 2. After the discovery ________ the tombs, they set out to do research on them...
【简答题】Who do you think_________________(get) the ticket already?2.As soon as a call_______________(make1. Who do you think_________________(get) the ticket already? 2.As soon as a call_______________(make) ...
【简答题】一个电压源 串联 一个电阻,可以等效变换为一个电流源 并联 。
【单选题】Who do you think will ____ now that the governor has been dismissed?
A.
take over
B.
take up
C.
take down
D.
take in
【简答题】一个电压源 串联 一个电阻,可以等效变换为一个电流源( )一个电阻
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