问题
选择题
The train is running ______120 kilometres an hour.
A.at a speed
B.at the speed
C.at a speed of
D.on a speed of
答案
答案:C
题目分析:考查固定搭配。句意:那辆火车以每小时120公里的速度行驶。at“以,按照......”,at a speed of以......的速度。故选C。
The train is running ______120 kilometres an hour.
A.at a speed
B.at the speed
C.at a speed of
D.on a speed of
答案:C
题目分析:考查固定搭配。句意:那辆火车以每小时120公里的速度行驶。at“以,按照......”,at a speed of以......的速度。故选C。