关于正常椎间盘信号,以下说法正确的是()A.在T2WI上髓核和内纤维环呈高信号,外纤

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问题:

关于正常椎间盘信号,以下说法正确的是()

A.在T2WI上髓核和内纤维环呈高信号,外纤维环呈高信号 

B.在T2WI上髓核和内纤维环呈低信号,外纤维环呈高信号 

C.在T2WI上髓核和外纤维环呈高信号,内纤维环呈低信号 

D.在T2WI上髓核和内纤维环呈高信号,外纤维环呈低信号 

E.在T1WI一髓核和内纤维环呈高信号,外纤维环呈低信号 

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Cats are creatures of habit. They like to go to sleep about the same time every day and for a certain length of time. They seem to have a natural clock inside them that tells them when to sleep. Cats increase their regular sleep with occasional cat naps.(打盹). Some experts feel that humans can also get advantages from this habit. Cats nap help to build up energy in the body. They are also a good way to get rid of trouble! Since cats have the same moods as humans, some experts believe that people can improve their moods. People might become happier.

A number of famous people have copied cats by taking cat naps during the day. The naps would usually last from 15 to 30 minutes. Winston Churchill took cat naps. So did President Harry Truman, John F. Kennedy, and Lyndon B. Johnson. These famous men were known for their energy. They were also able to work long hours, often into the night. Napping was their secret.

小题1: From the passage we know that cats_________________.

A.donothaveregularsleep

B.haveoccasionalsleepaswellasnapseveryday

C.takenapstoaddtotheirregularsleep

D.takenapswhentheyarenothappy小题2:Naps usually last ________. 

A.threehours

B.lessthanhalfanhour

C.forty-fiveminutes

D.fifty-fiveminutes小题3: which of the following is NOT true?

A.Cats have the same moods as people.

B.Some famous people take cat naps.

C.Some people have full energy after they take cat naps.

D.People should take their naps secretly.小题4:How many famous men were known for their energy have been mentioned?

A.3

B.4

C.5

D.6小题5:Taking cat naps ________. 

A.willmakeapersonlazyandtired

B.isabadhabit

C.willmakepeoplefeelbetter

D.canhelppeopletobecomefamous

题型:单项选择题

关于hCG的叙述哪项不正确的是()

A.在妊娠的前几周维持卵巢黄体的分泌功能

B.在母体血清以多种形式存在

C.主要经肝脏和肾脏清除

D.能结合并活化卵巢黄体细胞上的LH受体

E.hCGα亚基在妊娠8~10周达最高峰

题型:单项选择题

甲烷化反应过程中发生的反应有()。

A.一氧化碳与氢气反应

B.二氧化碳与氢气反应

C.乙烯与氢气反应

D.一氧化碳与甲烷反应

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某房地产投资咨询公司正在对市场调研工作展开研讨,请回答下述问题。

从识别和把握房地产客观市场环境的角度出发,可以按照()等标准,对房地产市场进行各种分类。

A.房地产用途

B.房地产交易形式

C.房地产地域范围

D.房地产购买者目的

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如何防治分月扇舟蛾?

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