高碳钢比低碳钢锻压性好。
参考答案:错
---- We’re organizing a party next Saturday, and I’d like you to come.
---- _______! I have another one that day. Thank you just the same.
A.Good luck
B.What a pity
C.Never do it again
D.Well done
用万用表欧姆档测量电阻时,要选择好适当的倍率档,应使指针尽量接近()。
A.高阻值端
B.低阻值端
C.标尺中心
D.怎样都行