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【判断题】
如果一个菌落是由一个细菌菌体生长、繁殖而成，则称为纯培养。A.
正确
B.
错误
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】--- Could you finish your paper today? --- ___________.
A.
I’ve got some paper
B.
That’s great
C.
OK, thank you
D.
Oh, no problem
【单选题】I have done much of the work,could you finish _____ in two days?
A.
the rest
B.
the other
C.
another
D.
the others
【单选题】Could you finish the task in two days? I have something else to do these days.
A.
I could not
B.
Yes.I think so
C.
I'm afraid so
D.
I'm afraid not
【简答题】一批产品中,一、二、三等品率分别为0.8、 0.16、 0.04,若规定一、二等品为合格品,则产品的合格率为
【单选题】一 Could you finish the task in two days? 一_______.I have something else to do these days.
A.
I could not
B.
Yes.I think so
C.
I'm afraid so
D.
I'm afraid not
【单选题】Could you finish the task in two days?_____
A.
I'm afraind not
B.
I'm afraid so
C.
yes, I think so
D.
I could not
【单选题】—Could you finish the task in two days? —_______. I have something else to do these days. [ ]
A.
I could not
B.
Yes, I thinks so
C.
I'm afraid so
D.
I'm afraid not
【单选题】Could you finish the task in two days? 一（）I have something else to do these days．
A.
I could not
B.
Yes．I think so
C.
I'm afraid so
D.
I'm afraid not
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