次高压A的城镇燃气管道设计压力表压范围是以下哪一项?A.1.6<P≤2.5MPa

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问题:

次高压A的城镇燃气管道设计压力表压范围是以下哪一项?

A.1.6<P≤2.5MPa 

B.0.8<P≤1.6MPa 

C.0.4<P≤0.8MPa

考点:燃气安全环保知识竞赛燃气安全燃气安全题库
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阅读理解。

     Yesterday Paul had a busy day. In the morning he cooked some noodles for his family. He went to visit

his aunt at 9:30. In the afternoon he played soccer ball with his classmates. After that he cleaned the room

because it was dirty. He was a little tired,but very happy. After dinner he did his homework. Then he watched

TV for about two hours. He went to bed at nine o'clock.

根据短文内容,判断下列句子正(T)误(F).

( )1. Paul had a busy and happy day off.

( )2. In the morning he cooked some hamburgers for his family.

( )3. In the afternoon he played soccer ball with his parents.

( )4. He cleaned his room in the afternoon.

( )5. He watched TV first then he did his homework.

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POP3协议采用 (26) 模式,当客户机需要服务时,客户端软件(Outlook Express或Foxmail)与POP3服务器建立 (27) 连接。

A.TCP
B.UDP
C.PHP
D.IP

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