问题
单项选择题 A1型题
目前普遍认为下述哪一毒作用没有阈值（）。
A.急性毒性试验
B.慢性毒性试验
C.亚慢性毒性试验
D.致畸试验
E.致癌试验
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
目前普遍认为下述哪一毒作用没有阈值（）。
A.急性毒性试验
B.慢性毒性试验
C.亚慢性毒性试验
D.致畸试验
E.致癌试验
参考答案：E
| 选词填空。 | |
1 . "I like football, Doctor. " He said, " Please help me. My life has 2 been a good one since I became 3 in football and it is getting worse and worse. I can't even 4 from it in my sleep. When I close my 5 , I'm out there in the football field and 6 after a flying ball. When I wake up, I'm more 7 than I was before I went to bed. What am I going to do?" The doctor sat back and said, "First of all, you 8 to do your best not to dream about football. Before you fall asleep, try to 9 about something else. Try to think that you are at a party and someone is going to give you several million dollars. " "Are you crazy(疯了)?" the man shouted,"I'll 10 the ball!" 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |
