袋收尘脉冲阀不工作的可能原因及排除方法。
参考答案：
原因可能：1电源断电或清灰控制器2仔细清理脉冲阀3更换4检查气路系统及压缩机
阅读短文，作判断，用“T”或“F”表示：
It is Saturday today. Tom has no lesson. Tom and his father are on a bus now. They are going
to the supermarket. On the bus, Tom meets his uncle Henry, his aunt Ann and their son Tony. Tom
says hello to them. They are going to the zoo. Tony wants to see the animals in the zoo. He likes
animals. He says he can see many animals there. At the bus stop they say goodbye.
( )1. It is Saturday tomorrow.
( )2. Tony is Tom’s brother.
( )3. Tom’s uncle is going to the supermarket.
( )4. Ann is Tony’s mother.
( )5. Henry is on the bus, too.
( )6. There are no animals in the zoo today.
下列哪项是阳虚证的典型表现
A．神疲乏力
B．形体消瘦
C．形寒肢冷
D．舌暗脉细
E．大汗淋漓
