焊接夹具
参考答案:
为保证焊件尺寸,提高装配效率,防止焊接变形所采用的夹具。
_______________many children like sugar, I think they had better try not to eat it too often.
A.Because
B.When
C.Although
D.If
我国《民用建筑设计规范》规定,住宅至少有一个居室能获得冬至日满窗日照不少于( )。
A.1小时B.1.5小时C.2小时D.3小时