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问题 判断题

一条Φ325mm10mm的输气管线通球清管，已知输气流量200104m3/d，起点压力为6.5Mpa（绝），终点压力6.2Mpa（绝），不考虑其他因素影响，该清管器运行速度是17.98km/h。

答案

参考答案：对

阅读理解

阅读短文，判断正(√)误(×)。

      Look at the cat. Its (它的) name is Xiao Bai. It has white body and black ear. Its eyes are brown. Its mouth

is black. The cat's voice (声音) is meow, with a meow meow here and a meow meow there, here a meow, there a meow, everywhere (到处) a meow meow. I like it.

( ) 1. The cat's name is Xiao Bai.

( ) 2. The cat is white.

( ) 3. The cat's mouth is black.

( ) 4. The cat's voice is meow.

( ) 5. I don't like the cat.
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单项选择题

高炉内部工作空间的形状称为高炉炉型。现代高炉由（）、炉腹、炉腰、炉身和炉喉五段组成。

A、炉顶

B、炉内

C、炉外

D、炉缸
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