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【判断题】
一般将热源散热量大于84kJ/(m2·h)的环境叫高温作业环境。( )A.
正确
B.
错误
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举一反三
【简答题】Direction: Here are some examples in everyday language. Transform them into sentences in scientific language by nominalising the underlined parts.Because bacteria genes are incredibly adaptable, there...
【单选题】G negative bacteria are usually not sensitive to penicillin, because
A.
they do not have teichoic acids in peptidoglycan
B.
they do not have side chains in peptidoglycan
C.
they do not have NAG-NAM backbones in peptidoglycan
D.
they do not have cross-bridge in peptidoglycan
【简答题】二辊式定、减径机主传动形式有 和单独传动两种。
【单选题】Which of the following is true according to the first paragraph?
A.
Bacteria are as big as a pinhead.
B.
Bacteria can not be seen by an ordinary microscope.
C.
Bacteria are hard to see because they often live together.
D.
Bacteria are very small so they can only be measured in microns.
【单选题】According to the researchers, cream sours faster than butter because bacteria ______.
A.
are more evenly distributed in cream
B.
multiply more easily in cream than in butter
C.
live on less fat in cream than in butter
D.
produce less waste in cream than in butter
【简答题】According to the researchers, cream sours fast than butter because bacteria ________. A) are more evenly distributed in cream B) multiply more easily in cream than in butter C) live on less fat in cre...
【单选题】According to the researchers, cream sours faster than butter because bacteria ______.
A.
are more evenly distributed in cream
B.
multiply more easily in cream than is butter
C.
live on less fat in cream than in butter
D.
produce less waste in cream than in butter
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