在捞油井的油管或套管内,由于井下液体在管内滞留时间长,原油中的轻质馏分、胶质、沥青质

题型:单项选择题

问题:

在捞油井的油管或套管内,由于井下液体在管内滞留时间长,原油中的轻质馏分、胶质、沥青质和机械杂质会依附在油、套管的()上,造成捞油泵下不去。

A、内表面

B、底部

C、管鞋

D、外表面

考点:口腔执业医师口腔执业医师题库
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A.1
B.2
C.3
D.4

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A、100亿元和110亿元

B、110元和110亿元

C、110元和121亿元

D、121亿元和121亿元

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Everyone wants to be a pop star. When I was a kid, I wanted to be a pop star.   71   You get to sing and dance and make voices. People are willing to pay you tons of money and, of course, many fans love you. It’s a perfect life; what could be the problems?

  72  And one of the biggest problems is “crazy” fans who live their idols (偶像) too much. Andy Lau, the Hong Kang superstar, experienced that last year. A fan was so crazy about Andy that she persuaded her parents to spend all their money and travel to Hong Kang to meet him. Andy is a nice man so he met the girl and talked with her for a few minutes.

That should have been the end of the story, but it wasn’t!   73  In despair (绝望), the father jumped into the sea and said it was because Andy Lau had made him poor and had made his daughter a “crazy” fan. It’s a very sad story and it shows what can happen when ordinary people become crazy pop fans.

We like famous persons, and we enjoy listening to them.   74  And some people think that, since they love the pop star, the pop star should love then back.. That’s crazy!   75  They have their own families and friends. Their job is to entertain us, not to love us. So, don’t be a “crazy” fan, be a good fan, and just appreciate the joy, the happiness and the excitement that your favorite pop star bring you.

A.Well, clearly, there are lots of problems.

B.Sometimes we think we know them as well as we know our closest friends.

C.It seems like the coolest job in the world.

D.The family had spent all their money to meet Andy and they had no money to return home.E. They hated the superstar.

F. Pop stars have their own personal lives.

G. In fact, there is no difficulty in becoming a pop star.

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A.合伙型

B.主动型

C.可靠型

D.反应型

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