High-speed trains travel at 300 kilometers an hour, which is about _____ normal trains. [ ]A. four t

题目简介

High-speed trains travel at 300 kilometers an hour, which is about _____ normal trains. [ ]A. four t

题目详情

High-speed trains travel at 300 kilometers an hour, which is about _____ normal trains.
[     ]
A. four times the speed as
B. the speed four times of
C. four times as the speed of
D. four times the speed of
题型:单选题难度:偏易来源:同步题

答案

D

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