摩擦离合器在挤压机低速时调节到（）kg/cm2。
A.2.15
B.3.00
C.2.05
D.2.8
参考答案：A
The companies ________ secretaries can sign up here first. [ ]
A. in charge of
B. in demand of
C. in praise of
D. in honour of
离合器踏板自由行程过小，行车无力。
