厨房岗位职责控制法实施的要点是什么？

----Why did you get so angry with Tom then?

----I had been waiting for _____ seemed for ages before he finally turned up.

A．that

B．which

C．what

D．when

简述银行汇票的业务处理流程。

薄层层析法是目前临床上最常用的尿糖定性方法。()

食指指向目标

外群体