对临床诊断有困难的急性腹膜炎，最佳的检查是
A．X线钡餐检查B．选择性血管造影C．诊断性腹腔穿刺D．内镜检查E．放射性核素扫描
参考答案：C
《史通》
—Let’s ask him to _______ us in a game.
—Ok. Pass the coin from one of the students to _______.
A．join; another
B．join; the other
C．join in; another
D．join in; the other
