I have ________ interesting story book. [ ]
A. a
B. the
C. an
D. /
答案：C
We have a job ______ you _______ a teacher.[ ]
A. for; as
B. of; as
C. to; for
用GB/T 2828.1检索出正常检验方案为(125，5)，则( )。
A．不合格品数超过6个则批不接收
B．抽样样本数为5
C．相同批产品方案(125，6)比(125，5)接收的概率增加
D．检验方案中抽样样本量越小越合理
