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【单选题】
多环芳烃、芳香胺类与氨基偶氮染料属于A.
原癌基因
B.
肿瘤抑制基因
C.
化学促癌物
D.
直接作用的化学致癌物
E.
间接作用的化学致癌物
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皮皮学刷刷变学霸
举一反三
【单选题】Listen to a conversation and choose the correct answer to each question. Why is Zhang Mei feeling stressed?
A.
She has two exams tomorrow.
B.
She has a lot of exams coming up.
C.
She has to write a schedule.
【简答题】One of the tourists in Chen Qiang ’ s group is not feeling well, and a stewardess is coming over to offer help. Listen to the conversation and choose the best answer to each of the following questions...
【判断题】以原电池的 来计算相应氧化还原反应的标准平衡常数,由此可以推论出,氧化还原反应的 K y 是各物种浓度为 1.0mol·L -1 或 p= 时的反应商。( )
A.
正确
B.
错误
【单选题】Task 2 One of the tourists in Chen Qiang’s group is not feeling well, and a stewardess is coming over to offer help. Listen to the conversation and choose the best answer to each of the following ques...
A.
She feels like dizzy.
B.
She feels like vomiting.
C.
Her ears are buzzing.
D.
She looks rather pale.
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