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【判断题】
【商】利用江河水域进行游泳锻炼时,要事先了解水域的水温,漩涡,水流,深水区、浅水区,水底水中情况等。A.
正确
B.
错误
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【简答题】DC-DC变换降压斩波电路,如图1-3所示,若输入电压 、 占空比 ,则输出电压平均值 为 伏。
【简答题】Complete the following sentences by translating the Chinese into English, using “might as well + present perfect” to say that it would not make any difference if you did something else. 1. If I had kn...
【简答题】Who is the writer of Text A Unit 1?
【单选题】If you did something that you now regret, you feel
A.
sorry about what happened.
B.
bored with what happened.
C.
good about what happened.
【单选题】1 Who is the writer of the Canterbury Tales!
A.
John Donne
B.
Chaucer
C.
Shakespeare
D.
Conrad
【单选题】He wrote to his friends ______ information.
A.
asked for
B.
to ask for
C.
ask for
D.
asks for
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