劳动合同中约定的试用期不得超过（）个月
A.3
B.4
C.5
D.6
参考答案：D
在计数抽检方案的OC曲线中，OC曲线单调______，当不合格品率减小时，接收概率______。
A．上升，增大
B．下降，变大
C．上升，变小
D．下降，增大
What disappointed us was that their determination finally ___.
A．gave off
B．gave out
C．gave up
D．gave in
