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【单选题】
一般样品菌落总数平板培养条件()A.
6±1℃培养 48±2h
B.
36±1℃培养 24±2h
C.
30±1℃培养 48±2h
D.
0±1℃培养 24±2h
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反馈参考答案：
举一反三
【多选题】What are the listening skills mentioned in this unit?
A.
Predict
B.
Recognizing sound
C.
Identifying meaning grou p
D.
Inferring meanin g
【单选题】A. With a listening typewriter, what an author says would be automatically recognized and displayed in front of him or her. However, speech recognition is not yet advanced enough to provide people wit...
A.
B
B.
C
C.
D
D.
E
【简答题】校社联的全称为
【简答题】煤燃烧排放的烟气含有 SO 2 和 NO x ,形成酸雨、污染大气,采用 NaClO 2 溶液作为 吸收剂可同时对烟气进行脱硫、脱硝,回答下列问题: ( 1 )在鼓泡反应器中通入含有 SO 2 和 NO 的烟气,反应温度为 323 K , NaClO 2 溶液浓 度为 5×10 −3 mol·L −1 。反应一段时间后溶液中离子浓度的分析结果如下表 1写出 NaClO 2 溶液脱硝过程中主要反应的...
【单选题】A. With a listening typewriter, what an author says would be automatically recognized and displayed in front of him or her. However, speech recognition is not yet advanced enough to provide people wit...
A.
A
B.
B
C.
C
D.
E
【单选题】A. With a listening typewriter, what an author says would be automatically recognized and displayed in front of him or her. However, speech recognition is not yet advanced enough to provide people wit...
A.
B
B.
C
C.
D
D.
E
【单选题】In a pre-listening activity, students need to learn to cope with some ambiguity in listening and realize that they can still learn even when they do not understand every single word. The aim of this a...
A.
listening for specific information
B.
listening for gist
C.
listening for structure .
D.
Listening for vocabulary.
【单选题】A. With a listening typewriter, what an author says would be automatically recognized and displayed in front of him or her. However, speech recognition is not yet advanced enough to provide people wit...
A.
B
B.
C
C.
D
D.
E
【单选题】What does this symbol “Θ” mean when we take notes in listening comprehension? ( )
A.
Conference.
B.
Because of.
C.
Leaders.
D.
International.
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