社区卫生服务中心应至少设置的日间观察床的数量是()
A.2张
B.3张
C.4张
D.5张
E.6张
参考答案:D
_____ hungry I am, I never seem to be able to finish off this loaf of bread. [ ]
A. Whatever
B. Whenever
C. Wherever
D. However
C1601塔盘的型式是()
A.泡罩式
B.筛板式
C.浮阀式
D.填料式