关于矩阵的描述,错误的是() A.一个横竖方式排列的二维阵列 B.在相同大小的采集面

题型:单项选择题

问题:

关于矩阵的描述,错误的是()

A.一个横竖方式排列的二维阵列

B.在相同大小的采集面积中,矩阵越大像素数也就越多

C.矩阵越大,像素越少,重建后图像分辨力越高

D.矩阵越大,像素越多,重建后图像分辨力越高

E.显示矩阵往往是大于或等于图像的采集矩阵

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I’m sorry to have kept you ________ for a long time.

A. wait       b. to wait     c. waiting     D. to be waiting

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How the iron of tomorrow (the first Self Clean Iron)can change your lifestyle today?

General Electric introduces the iron of tomorrow. The iron can clean itself. Inside where irons get dirty. Because it cleans itself each and every time you empty it.How? With a push of a magic blue button.

The magic blue button.The first thing you’ll notice that’s different about this iron is the blue button on the side. It’s marked “Self Clean”. Push this blue button, and you can wash out loose mineral deposits  that remain and block up inside. Push this button, and you’ve made life a lot easier.

Less chance of brown spotsSure, Self Cleaning Iron is going to cut down on brown spots. (Those ugly spots that happen on nice, cleanly pressed clothes.) Because a Self Cleaning Iron becomes clean each time you press that magic blue button.Steams much longerCommon sense tells you that if you’ve an iron that blocks less often it has to stay younger for a long period of time. In other words, it steams much longer. That’s another joy of owning General Electric’s Self Cleaning Iron.What does it mean to youToday you are doing so much more than just running a house and running after the kids. You’re working. You’re going to school. It’s all part of your lifestyle. The iron can change that lifestyle. By giving you less trouble before you iron. If we can make it easier for you to be a better wife, a better mother, a better housemaker, we want to. The new Self Cleaning Iron is another one of Home-Makers from General Electric.

Lifestlye.We’re with yours. GENERAL ELECTRIC

9.This passage is ______.

A.an introduction to General Electric     B.an operating instruction of Self Cleaning Iron

C.an advertisement of Self Cleaning Iron  D.a description of the change of lifestyle

10.This iron can clean itself by ______.

A.empting itself                       B.washing out mineral deposits 

C.blocking up mineral deposits          D.giving off more steam

11.According to the passage, what is most likely to attract the customers?

A.It is made by General Electric.            

B.The iron will not produce mineral deposits.

C.There will be fewer brown spots on pressed clothes.

D.Their clothes will be cleaned at the same time.

12.Self Cleaning Iron can help change your lifestyle because ______.

A.you can run your house better         B.you don’t have to run after the kids

C.you can use it while you are working    D.we want you to be a better housemaker

题型:单项选择题

甲亢有意义的检查结果是

A.甲胎蛋白阳性
B.X线钡灌肠造影见“杯口状”阴影
C.X线钡剂造影可见龛影
D.血沉加快
E.血清T3T4升高

题型:单项选择题

下列不是呼吸衰竭伴有二氧化碳潴留时的变化的是()

A.脑血流量降低

B.呼吸性酸中毒

C.肾脏保留碳酸氢盐

D.神志模糊

E.颅内压增高

题型:单项选择题

施工地段放行列车时,轨道静态几何尺寸偏差不得超过()(允许速度vmax=120km/h)容许偏差管理值。

A、临时补修

B、经常保养

C、作业验收

D、TOI评定

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