中压系统风管每10m接缝，漏光点不应超过1处，且（）m接缝平均不应大于8处。
A.100
B.150
C.200
D.300
参考答案：A
—Hey, who’s that man over there? He us since we came in.
—The one by the door? I don’t know. He looks like a lawyer or something, not a journalist. Perhaps he here to look round, like us.
A．has watched；only came
B．is watching；had only come
C．has been watching；has only come
D．had been watching；came
患者，女，36岁，突发右上腹痛，伴恶心、呕吐，以往有排石史，最可能的诊断是
A．右肾结石B．右输尿管结石C．胆总管结石D．胆囊结石E．右肾结核
