单选题
On the giant plane there are ______ the jet needs.
A、
twice engines than
B、
twice as engines as
C、
as twice many engines as
D、
twice as many engines as
【正确答案】
D
【答案解析】
[注释] 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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