小儿易患
A．粟疮，疳积上目B．目视不明，老视C．经期目病，妊娠目病，产后目病D．天行赤眼E．能近怯远
参考答案：A
用所给词的正确形式填空。
1. He has a lot of homework (do).
2. I'm not sure whether I (be) on time.
3. If we (take) good care of the young trees, they will grow up quickly.
4. Have you read the book (call) "Gone with the wind?"
5. We (come) if it doesn't rain tomorrow.
6. You have to spend half an hour (read) English every day.
7. Here (come) the bus!
8. Is that house large enough for all of us (live) in?
9. When school was over yesterday, it (snow).
10. I'm too tired. Let's (stop) to have a rest.
如图所示，电压表和电流表的读数分别为10V和0.1A，电流表的内阻为0.2Ω，那么有关待测电阻Rx的说法正确的是
A．Rx的测量值比真实值大
B．Rx的测量值比真实值小
C．Rx的真实值为99.8Ω
D．Rx的真实值为100.2Ω
