问题
单项选择题 A1型题
致癌物的最终确定应该依据（）
A.致突变试验、动物致癌试验、流行病学调查
B.构效分析、致突变试验、恶性转化试验
C.构效分析、致突变试验、动物致癌试验
D.剂量反应关系、动物致癌试验、流行病学调查
E.恶性转化试验、动物致癌试验、流行病学调查
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
致癌物的最终确定应该依据（）
A.致突变试验、动物致癌试验、流行病学调查
B.构效分析、致突变试验、恶性转化试验
C.构效分析、致突变试验、动物致癌试验
D.剂量反应关系、动物致癌试验、流行病学调查
E.恶性转化试验、动物致癌试验、流行病学调查
参考答案：D
| 完形填空。 | ||||
| It is the middle of the day. Mother and Jack at table for __1___. There is some rice, bread and meat __2___ the table. "I don't like any ___3___ . I don't want to eat it." says Jack. Mother says, "All right. Don't ___4___ it." After lunch mother goes to work in the field (田地) and Jack goes to school. __5___ supper mother gives a bowl of rice to Jack again. "Oh, it is great!" says Jack. "It is the same rice." says Mother. "Is that so?" asks Jack. | ||||
|