泡罩塔的优点是()。
A.生产能力大
B.雾沫夹带现象较小
C.有较好的操作弹性
D.不易发生漏液现象
参考答案:C, D
______ more effectively in the future, many people equip themselves with further education.
A.Compete
B.Competing
C.To compete
D.Competed
汽车式起重机动臂方位与其稳定性有关,稳定性最差时动臂应处于()。
A.侧方
B.前方
C.后方
D.任意方向