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【判断题】
野营用品经常被航空公司作为隐含危险品来承运,即使没有易燃气体、易燃液体和火柴的野营用品如野营帐篷,也是不可以按照普通货物向航空公司托运A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Speaker A: I’ve decided to give up my job, Mom. Speaker B: ____ You’d better think twice.
A.
Sounds great!
B.
Are you serious?
C.
What a pity!
【简答题】PWM占空比就是____电平保持的时间与该PWM的时钟周期的时间之比。
【单选题】You'd better think twice before you ______ the plastic.
A.
bust down
B.
bust up
C.
bust off
D.
bust out
【单选题】-I've decided to give up my job , Mum . - You'd better think twice .( ) A. Sounds great! B. What a pity! C. Guess what ? D. Are you serious' ?
A.
B.
C.
D.
D
【单选题】--I've decided to give up my job, Mum. --__________ You'd better think twice.
A.
Sounds great!
B.
What a pity!
C.
Guess what?
D.
Are you serious?
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