检验批的抽样方案有（）。
A．免检
B．多样抽样方案
C．全数检验
D．随机抽样
E．分层抽样
参考答案：B, C, D
误机(车、船)是重大事故，给旅行社和旅游者均带来很大损失，严重影响旅行社的声誉。导游员要高度认识其严重后果，杜绝此类事故的发生。
He was a bit nervous. He _________his spare breath with a soft sound that was almost heard by the audience.
A．gave out
B．let out
C．picked out
D．blew out.
