为了按规定时间反风,加快停机操作,2K56型通风机备有刹车装置。
参考答案:对
(2014年(春)重庆市高三考前冲刺测试卷)2. For many, winning remains __ dream, but they continue trying their luck as there're always __ chances that they might succeed.
A./; /
B.a; the
C.a; /
D.the; the
蒸汽吊车在运转中,轴瓦的温度一般不应超过()℃。
A.50
B.70
C.80
D.100