On the giant plane there are ______ the jet needs.

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问题 On the giant plane there are ______ the jet needs.

选项 A、twice engines than
B、twice as engines as
C、as twice many engines as
D、twice as many engines as

答案D

解析 本题要注意比较级的一种句型:倍数词+as...as。这里倍数词twice必须置于as...as之前。
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