こんしゅうのげつようびはようかでしたね。()
A.今週
B.先週
C.近週
D.前週
参考答案:A
管段组装焊接前要进行焊前预热,目的是消除内应力,预热温度为()。
A.80~100℃
B.100~120℃
C.120~150℃
D.150~200℃
— _____ I hand in my report as soon as the class is over?
— No, you needn't. Anytime this week is okay. [ ]
A. May
B. Must
C. Shall
D. Can