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【单选题】
下列不符合臭氧消毒的说法是A.
消毒时间应≥30min
B.
臭氧发生器将空气中的氧气转换为臭氧
C.
要求臭氧浓度≤20cfu／m
D.
主要依靠强大的氧化作用杀菌
E.
温度、湿度、pH值等影响臭氧的杀菌作用
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皮皮学刷刷变学霸
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【简答题】从所给七个选项中选出五个补全对话。 A. I'm glad to see you. B. How do you like the city? C. I'm sure you will have a good time. D. Are you Mrs Green from Canada? E. Is this you first visit to Nanjing? F. It's a nice pl...
【单选题】Speaker A: Well, I have to get back to the office now. It's been really nice talking to you. Speaker B: ______See you.
A.
Glad to meet you.
B.
Nice talking to you.
C.
I'll be right back.
D.
You shouldn't leave.
【简答题】Lovarstatin 为何被称为前药 ?
【单选题】— Never thought to see you here! —
A.
It’s a small world.
B.
So did I.
C.
Oh, haven’t you?
D.
Glad to meet you.
【单选题】听力原文：How do you do? Nice to meet you. (5)
A.
I like you.
B.
Thank you very much.
C.
How do you do? Glad to see you.
D.
At 9:00.
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