车辆制动器的制动间隙应适当，如制动间隙过小会造成（）。
A、制动跑偏
B、制动失效
C、制动失灵
D、制动拖滞
参考答案：D
同义句转换。
1. He handed my brother a letter this morning.
He handed a letter _____ _____ _____ this morning.
2. I'd like to go to Shanghai this summer.
I'd like to _____ _____ Shanghai this summer.
3. Why not offer him some chances of practice?
_____ _____ _____ offer him some chances of practice ?
4. How do you like our school?
_____ do you _____ _____ our school?
5. I spent 25 yuan on this dictionary.
The dictionary _____ _____ 25 yuan.
通常测得的煤中空气干燥基水分与内在水分略有不同，前者较后者（）。
A.高
B.低
C.相等
D.无法判断
