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The only type of helicopter that may be refueled with the en

题目
单选题
The only type of helicopter that may be refueled with the engine running and the blades turning is（）.
A

a helicopter carrying cargo only

B

a turbine-equipped helicopter

C

a Sikorsky

D

a helicopter carrying injured personnel in an emergency situation

参考答案和解析
正确答案： B
解析： 暂无解析
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第2题：

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第3题：

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第4题：

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第5题：

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A.must be
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解析：

第8题：

(iii) Identify and discuss an alternative strategy that may assist in improving the performance of CTC with

effect from 1 May 2009 (where only the products in (a) and (b) above are available for manufacture).

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