对安全阀进行自动排放试验,校验其()。
A、整定压力
B、回座压力
C、严密性
D、以上三项
参考答案:D
27.All the Chinese people are expecting the government’s four-thousand-billion financial plan ____ around the country, _____ to improve the current economic situation.
A.carried out, intending
B.being carried out, intended
C.to be carried out, intending
D.to be carried out, intended
重型咽白喉的临床特点为()
A.高热、面色苍白、极度乏力
B.扁桃体上的假膜迅速扩大,延及腭垂及鼻咽部
C.假膜呈大片状,厚,呈灰色
D.口有腐臭味
E.颈淋巴结肿大