气阀中最容易损坏的部件是()。
A.阀片、弹簧
B.阀座
C.缓冲片
参考答案:A
照样子,写字组词。
(工)(空)(天空)(空间)
(马)( )( )( )
(工)( )( )( )
—Would you please ____ my son from the station for me?
—I’ll be glad to.
A.put up
B.make up
C.give up
D.pick up