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【单选题】
下列毒理学研究内容中不属于特殊毒理研究的内容是（ ）。A.
微生物回复突变试验
B.
哺乳动物培养细胞染色体畸变试验
C.
长期毒性试验
D.
一般生殖毒性试验
E.
致癌试验
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反馈参考答案：
举一反三
【单选题】What is the difference between primary sources and secondary sources? a. Primary sources relate to publicly available data, like historical documents (e.g., a transcript of oral history, interview dat...
A.
ab
B.
ac
C.
cd
D.
bd
【单选题】Below are some points from the minutes of a meeting at ABC Company and also a transcript of the meeting on the next page. Try to match each of the points with its corresponding part in the transcript(...
A.
Alice Nelson suggested sending a gift to the hospital.
B.
Sam Shawn described the topic for discussion at today’s meeting.
C.
Sam Shawn concluded the meeting and settled the time for the next meeting.
D.
Discussion took place about possible ways to solve the problem.
E.
Sam Shawn mentioned that the husband of one of their colleagues was ill in hospital.
【单选题】What is the difference between primary sources and second sources?a: Primary sources relate to publicly available data, like historical documents (e.g., a transcript of oral history, interview data), ...
A.
ab
B.
ac
C.
cd
D.
bd
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