在华为掉话分析中，TCH话务量是统计（）和（）TCH信道上的话务量（单位：爱尔兰）。
参考答案：全速率；半速率
Reportedly, yesterday a group of American soldiers were walking along the road in Iraq when a bomb was _______, three of whom were killed．
A．set off
B．set out
C．set up
D．set about
“一畅两会”的具体内容：
