有一直齿园住齿轮,m=4,Z=36,它的分度园直径为()
A、152
B、134
C、144
D、140
参考答案:C
读音选词 根据所给句意和音标,从每题ABCD四个选项中选出一个最佳答案
小题1:There are _____________ / f?: / people in my family.
A for B four C from D form
小题2:What can you see in the ____________ / leik / ?
A lake B like C late D left
小题3:Most of my classmates ____________ / raid / to school every day.
A red B read C ride D rice
小题4:The train came to a ____________ / ??p / slowly at the station.
A shop B store C stop D soup
小题5:Walk _____________ / θru: /the park and you will find a beautiful hotel.
A though B throw C throat D through
()不属于风险识别的主要内容。
A.识别引起风险的主要因素
B.识别风险的性质
C.识别风险可能引起的后果
D.风险对策实施的监控