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问题 单项选择题

澳门客户在杭州接听13905718233的来电，如何计费？（）

A.2.0元/分钟

B.2.88元/分钟

C.4.8元/分钟

D.2.5元/分钟

答案

参考答案：B

补全对话，情景问答
读句子，选择合适的答语。
( ) 1. What colour is the pig? 
( ) 2. Is the cow big or small?
( ) 3. What is it?
( ) 4. Is this a duck or a chicken?
( ) 5. Do you like a pig?		A. The cow is big.
B. It is a pond.
C. No, I don't.
D. The pig is pink.
E. This is a duck.
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单项选择题

A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by（）.

A.cutting a square notch at each end of the crack

B.drilling a hole at each end of the crack

C.slot-welding the crack

D.welding a doubler over the crack
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