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【单选题】
用l00ml 80%敌敌畏乳油稀释成0.05%浓度,需加水多少?A.
80kg
B.
80mg
C.
160kg
D.
160mg
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举一反三
【单选题】He has already been living in China for twenty years, so it's possible for him to see things from the ( ) of a Chinese.
A.
perspective
B.
prospective
C.
perceptive
D.
permissive
【单选题】—What’s your math teacher like? —_________.
A.
He’s twenty-seven years old
B.
He works in our school
C.
He’s creative and outgoing
D.
He likes physics and biology
【单选题】—What's your English teacher like? —______. [ ]
A.
He's twenty-seven years old
B.
He works in our school
C.
He's creative and outgoing
D.
He likes physics and biology
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