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

Those who ______ to cheating will also be required to complete a four-hour course in ethics.

ModularP模块的每小时测试速度是（） A: 600tests/hour B: 800tests/hour C: 900tests/hour D: 1000tests/hour E: 1200tests/hour

The emplyees in that company are paid ______. A: by hours B: by hour C: by an hour D: by the hour

I’ll be with you in (). A: one quarter of an hour B: a quarter of one hour C: one quarter of hour D: a quarter of an hour

将变量hour的个位送入变量gw的语句是：（ ） A: gw= hour; B: gw=hour/10; C: gw=hour%10; D: gw== hour%10;

John will be late for the party because something happened _________. A: for one hour B: in one hour C: one hour ago D: one hour past

There are _______ buses to the airport. A: hour B: an hour C: hourly

Yesterday we had （） talk. A: Aone and a half hour’s B: Bone and a half hour C: Can hour and a half’s D: Dan hour’s and a half

--How did the boss pay the workers--As a rule, they were paid(). A: by an hour B: by the hour C: by hour D: by hours