The frame needs to be strong enough to support the engine.

admin2014-03-28  67

问题 The frame needs to be strong enough to support the engine.

选项 A、bottom
B、surface
C、top
D、structure

答案D

解析 句意为:构造需要足够强大到支持引擎。frame“结构,构造”,四个选项;bottom“底部”;surface“表面”;top“顶端”;structure“结构”。
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