服务案例分析法是由培训师向学员提供相关的背景资料,让其()寻找合适的解决方法。
A.研究和分析
B.讨论和分析
C.讨论和探讨
D.研究和选择
参考答案:B
_________ teachers are present today, and __________ them is 300.
A.A great many; a number of
B.A number of; the number of
C.A dozen of; a great many
D.The number of; a number of
检查井井底宜设流槽,污水检查井流槽顶可与______倍大管管径处相平,雨水合流检查井流槽顶可与______倍大管管径处相平。
A.0.5,0.4 B.0.65,0.5 C.0.75,0.6 D.0.85,0.5