货物的包装有()形式。
A、箱、捆、袋、桶装
B、瓶、筐、蓝等
C、裸装货及集装箱
D、A+B+C
参考答案:D
Joining the firm as a clerk, he got rapid promotion, and _______ as a manager.
A.ended up
B.dropped out
C.care back
D.started off
内曲线多作用径向柱塞马达可做()使用。