以下为柴油机机油型号的是()。
A.SH
B.CE
C.DOT4
D.G1-5
参考答案:B
The police _____ the lost boy everywhere when he suddenly turned up in a supermarket.
A.searched
B.searched for
C.was searching
D.were searching for
手工滚卷时,手摇滚卷机可以滚卷()mm厚的板料
A、0.3~1
B、1~2
C、2~3
D、3~4