【判断题】【消耗次数：1】
酒精是常用的表面消毒剂，其100%浓度消毒效果优于70%浓度。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
大部分消毒剂在高浓度时杀菌作用大，当浓度降低至一定程度时只有抑菌作用，但下列哪种消毒剂除外
①
苯扎溴铵(新洁尔灭)
②
苯酚(石炭酸)
③
乙醇
④
氯己定(洗必泰)
⑤
碘附
【单选题】
有关消毒剂的使用，描述错误的是（ ）
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戊二醛不宜对环境进行擦拭和喷雾消毒
②
乙醇可以用于室内空气的喷雾消毒
③
乙醇可用于较小物体表面的消毒
④
含氯消毒剂可用于织物、水、果蔬和食饮具等的消毒
⑤
负压隔离病房，不需要配置空气消毒设备
【单选题】
方舱CT设备使用后的地面消毒，消毒剂为（）
①
2000mg/L的含氯消毒剂
②
500mg/L的含氯消毒剂
③
浓度75%的酒精
④
浓度100%的酒精
⑤
紫外线照射消毒
【单选题】
方舱CT设备使用后的地面消毒，消毒剂为
①
2000mg/L的含氯消毒剂
②
500mg/L的含氯消毒剂
③
浓度75%的酒精
④
浓度100%的酒精
⑤
紫外线照射消毒
随机题目
【单选题】
7. ______ the help of my teacher, I caught up with the other students.
①
Under
②
In
③
With
④
On
【单选题】
9. -You’d better not go out now. It’s raining. -It doesn’t matter. My new coat can keep ______ rain.
①
in
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of
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with
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off
【单选题】
16.-This dress was last year’s style. -I think it still looks perfect ______ it has gone out this year.
①
so that
②
even though
③
as if
④
ever since
【单选题】
19. -Do you remember our pleasant journey to Xi’an? -Of course. I remember everything ______ it happened yesterday.
①
as soon as
②
even though
③
rather than
④
as if
【单选题】
13. Tom failed in the exam again ______ he wanted to pass it very much.
①
if
②
so
③
though
④
as
【单选题】
15.The book was so interesting that he had read it for three hours ______ he realized it.
①
when
②
until
③
after
④
before
【单选题】
5. -What is a writing brush, do you know? -It’s _______ writing and drawing.
①
with
②
to
③
for
④
by