埋地敷设的聚乙烯燃气管道,在长管段上通常应设置()补偿器。
A.套筒式
B.波形管
C.方形
D.Z字形
参考答案:A
— Oh, must you? Stay a bit longer. It has been such _____ fun having you here.
— Thanks. I've got _____ early start tomorrow morning. [ ]
A. a; an
B. /; the
C. /; an
D. the; an
与病毒性脑膜炎的临床表现不相符合的是()
A.以夏秋季为高发季节
B.以儿童多见,成人也可患病
C.幼儿患者有典型的发热、呕吐、皮疹、颈项强直和前囟隆起等症状体征
D.临床表现可分为病毒感染的全身中毒症状和脑膜刺激症状
E.肠道病毒71型脑膜炎可表现有手-足-口综合征