瓦斯抽放钻场处抽放管路预设抽放三通的作用是（）A、预设三通可_爱下问搜题

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问题单项选择题

瓦斯抽放钻场处抽放管路预设抽放三通的作用是（）

A、预设三通可增加钻场与抽放管路之间的对接时间，防止抽放地点瓦斯超限或积聚

B、预设三通可减少钻场与抽放管路之间的对接时间，加大抽放地点瓦斯超限或积聚

C、预设三通可减少钻场与抽放管路之间的对接时间，防止抽放地点瓦斯超限或积聚

答案

参考答案：C

阅读理解

信息归纳。

     My name is Hector. My birthday is coming. I’m planning to have a birthday party. I’m inviting my friends Peter and Bill. My parents went shopping and bought a lot of delicious food and some drinks yesterday.
     My birthday is June 9th. My grandpa’s birthday is September 23 rd. He lives with my uncle in America, so I usually send e-card to him on his birthday. Next Sunday is my cousin Julia’s birthday. Julia likes eating strawberries, so I want to buy her some strawberries on her birthday. My grandpa’s birthday is in April. It is very warm and nice in April. So on her birthday, we often go traveling.
      I believe everybody in my family is giving me a nice present on my birthday this year. I hope I can get a new bike.

Information Card

When is Hector’s birthday?	(1)._______________
Where does Hector’s grandpa live?	(2)._______________
What does Julia like eating?	(3)._______________
What do Hector’s family often do on his grandma’s birthday?	(4)._______________
What does Hector hope to get on his birthday?	(5)._______________

多项选择题

收入类账户按用途分为（）。

A.一般收入户

B.收入归集户

C.托收账户

D.代收账户