CrMo是中淬透性合金调质钢,油淬最大临界直径为()
A.30~40mm
B.40~60mm
C.60~100mm
D.100~150mm
参考答案:B
某医院对临床护士进行规范化培训,院内培训的方法不包括()
A.床边教学
B.读书报告会
C.国内进修
D.科室轮转
E.定期查房
—Did you go to Jack’s birthday party?
—No, I _______.
A.am not invited
B.wasn’t invited
C.haven’t invited
D.didn’t invite