感应式读卡机在安装时应注意可感应范围，不得靠近高频和（）。
A、热源
B、一般工艺管道
C、有保温层热力管道
D、强磁场
参考答案：D
用所给单词的适当形式填空。
1. My brother is two years _____________ (old) than me.
2. Tom is as _____________ (fat) as Jim.
3. Who is _____________ (thin), you or Helen? Helen is.
4. Does Nancy sing _____________ (well) than Helen? Yes, she does.
5. Which is _____________ (heavy), the elephant or the pig?
6. Whose pencil-box is _____________ (big), yours or hers? Hers is.
7. You have seven books, but I have _____________ (many) than you. I have ten.
8. I jump _____________ (far) than some of the boys in my class.
9. I'm very tall, but she's _____________ (tall) than me.
10. It gets _____________ and _____________ (warm) when spring comes.
盗贼重法
