与碳钢相比,不锈钢冷作硬化现象严重,应在每次压延后进行()处理,恢复塑性。
A、正火
B、回火
C、淬火
D、退火
参考答案:D
—How do you find his advice?
—What he said sounded ________,I think.
A.quite perfectly
B.nice and helpful
C.very clearly
D.polite or friendly
欧美资产阶级代议制的核心是( )
A.议会
B.总统
C. * * 或首相
D.大法官