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【单选题】
属于第二类危害的致病微生物有（）
A.
埃博拉病毒
B.
冠状病毒
C.
SARS冠状病毒
D.
枯草杆菌
E.
以上均是
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】第二篇 Sleep We all know that the normal human daily cycle of activity is of some 7 - 8 hours’ sleep alternating with some 16 - 17 hours’ wakefulness and that, broadly speaking, the sleep n...
A.
people hate the inconvenience of working on night shifts.
B.
your life is disturbed by changing from day to night routines and back.
C.
not all industries work at the same hours.
D.
it is difficult to find a corps of good night workers.
【单选题】把未受污染的地表水处理成生活饮用水，其去除对象主要为悬浮物、胶体和致病微生物，一般采用（）处理流程。
A.
混凝、沉淀、过滤工艺
B.
混凝、过滤、消毒工艺
C.
混凝、过滤、消毒工艺
D.
混凝、沉淀、过滤、消毒工艺