焊缝尺寸符号是表示坡口和根部间隙尺寸的符号。
参考答案:错
国家是维护( )的暴力组织。
A.统治阶级利益
B.被统治阶级利益
C.剥削阶级利益
D.人民群众利益
— Whenever you are short of money, just come to me.
—
A.Do you really mean it?
B.I can’t believe it.
C.That’s something.
D.What’s up?