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【单选题】
能增强磺胺药和多种抗生素抗菌活性的一类药物,称为抗菌增效剂。属于动物专用品种的磺胺增效剂是( )。A.
磺胺二甲嘧啶
B.
磺胺间甲氧嘧啶
C.
磺胺对甲氧嘧啶
D.
二甲氧苄啶
E.
磺胺嘧啶
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反馈参考答案：
举一反三
【单选题】What is the sound pattern used in “pride and prejudice”?
A.
Alliteration
B.
Rhyme
C.
Assonance
【单选题】The pattern of organization used in paragraphs 30-36 is ______
A.
list of items.
B.
time order.
C.
cause and effect.
D.
comparison.
【单选题】What is the pattern of structure mainly used in Para.8?
A.
Comparison and contrast
B.
Cause and effect
C.
Classification
D.
Definition
E.
Process analysis
F.
Exemplification
【单选题】The organizing pattern used in para. 7 is ________.
A.
space relationship
B.
time sequence
C.
example and illustration
D.
comparision and contrast
E.
cause and effect
F.
addition
【简答题】学生成绩表中，利用“最小值函数”求出普通物理的最低分，将结果显示在单元格C12中。
【简答题】物主代词 1. I _________ 2. they _________ 3. him ________ 4. she _________ 5. us ________ 6. you _________ 7. it __________ 8. yourself _____
【简答题】I meant to help him, ______(expect) I have brought him trouble.
【单选题】The CN – ion is widely used in the synthesis of organic compounds. What is the pattern of electron pairs in this ion?
A.
。
B.
，，
C.
，，，
D.
；
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