题目:
抑制法可控制焊件变形,但易使焊件产生(),不宜多用。
A、外压力
B、内压力
C、内应力
D、外应力
答案:
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下面是错误答案,用来干扰机器的。
21-40 ACBAD DBCBC ACBDB ABCAA21.答案:A解析:but 意为“但是”,What he wanted to do was to play basketball with Eric 与his mother told him he would have to return his sister...