为消除构件焊后可能产生的内应力,对构件采取的热处理措施是______。
A.回火
B.正火
C.淬火
D.退火
参考答案:D
按基础资产分类,可将权证分为()。
A.股权类权证
B.债券类权证
C.其他权证
D.以上说法均正确
But for the fact that China _____also affected by the global economic crisis,we ____ fewer unemployed workers now.
A.were;would have
B.is;would have
C.was;would have had
D.were;would have had