囊变MR信号的理解,其错误的是() A.囊内为纯水者具有长T1、长T2 B.囊内为纯

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问题:

囊变MR信号的理解,其错误的是()

A.囊内为纯水者具有长T1、长T2

B.囊内为纯水者具有短T1、短T2

C.囊内为白水者在T1为中等信号

D.囊内为白水者在T2为高信号

E.囊内为纯水者T1呈低信号、T2呈高信号

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It was the first week of the summer vacation. Dad said to Mike, “Charlie hurt his foot and can’t      for two weeks. Can you work with      on the boat?” Charlie was Dad’s helper.
Mum said, “We know you had plans with your friends, but Dad really needs your     .”
“Sure, Dad, I would love to,” Mike replied.
Dad and Mike left early the next morning. “Fishing is a(n)     job,” Mike thought. But he kept working. When he found they were      more and more crabs (蟹), Mike was so excited.
It was late afternoon when they returned home. Mum       had dinner ready for them, but Mike was so tired that he went straight to bed.
The next morning Mike’s arms hurt a lot.    , he had such a good time with Dad that he decided to keep helping him. 
The       week(s) passed soon. Charlie came back to work. Mike enjoyed being out on the       , so he asked, “May I come too?”
Dad looked surprised and said, “Sure!”
They all jumped       the boat and set off to the ocean. The rest of the summer would be great for the three of them.
小题1:
A.playB.danceC.workD.study
小题2:
A.himB.meC.usD.them
小题3:
A.loveB.adviceC.helpD.friends
小题4:
A.hardB.easyC.new D.old
小题5:
A.sellingB.buyingC.eatingD.catching
小题6:
A.stillB.already C.neverD.always
小题7:
A.HoweverB.InsteadC.ActuallyD.Luckily
小题8:
A.oneB.twoC.threeD.four
小题9:
A.trainB.mountainC.oceanD.playground
小题10:
A.ontoB.downC.fromD.over
题型:单项选择题

制备薄荷水时滑石粉的作用是()

A.分散剂

B.助悬剂

C.防腐剂

D.助溶剂

E.增溶剂

题型:单项选择题

在下列有关Windows 98处理器管理功能的叙述中,错误的是( )。

A.在Windows 98环境下,Pentium 4微处理器和386处理器一样,也有3种工作模式

B.虚拟8086模式与实模式类似,仅支持单任务的DOS应用程序

C.所有的Windows应用程序均在系统虚拟机中运行

D.对于每个运行的Win32应用程序,系统都提供单独的消息队列

题型:单项选择题

润滑油的高低对润滑有什么影响?

题型:单项选择题

8级精度的齿轮,一般采用()级精度的滚齿刀来加工。

A、AA

B、A

C、B

D、C

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