The Tower of London is the Church tower.A. twice high thanB. two times as high asC. twice

问题补充：

The Tower of London is the Church tower.

A. twice high than

B. two times as high as

C. twice higher as

D. three times the height of

答案：

A. twice high than

B. two times as high as

C. twice higher as

(答案→)D. three times the height of

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