下面不是CT的扫描方法的是() A.目标扫描 B.动态扫描 C.延迟扫描 D.高分辨

题型:单项选择题 A1/A2型题

问题:

下面不是CT的扫描方法的是()

A.目标扫描

B.动态扫描

C.延迟扫描

D.高分辨率CT扫描

E.定期扫描

考点:放射医学技术(士)CT检查技术CT检查技术题库
题型:单项选择题 A1/A2型题

在场强为B的水平匀强磁场中,一质量为m、带正电q的小球在O点静止释放,小球的运动曲线如图所示。已知此曲线在最低点的曲率半径为该点到x轴距离的2倍,重力加速度为g。求:

(1)小球运动到任意位置P(x,y)处的速率v;

(2)小球在运动过程中第一次下降的最大距离ym

(3)当在上述磁场中加一竖直向上场强为E的匀强电场时,小球从O点静止释放后获得的最大速率vm

题型:单项选择题 A1/A2型题

目前常用的保持器可分为()和()两类。

题型:单项选择题 A1/A2型题

MARPOL公约附则Ⅵ规定,在波罗的海区域和SOX排放控制区内,船上使用的燃油含硫量质量分数不超过()。

A.1.5%

B.2.5%

C.3.5%

D.4.5%

题型:单项选择题 A1/A2型题

某甲系贩运海鲜的商人,因冷藏库发生故障,请技师某乙进行修理。甲在受领乙之工作时,发现乙完成的工作具有严重的瑕疵,致使冷藏库仍未能正常使用,于是表示在乙修理好冷藏库之前拒不给付报酬。
问:(1)甲的做法是否有理
(2)如果因冷藏库无法正常使用而导致库内的海鲜腐烂,造成甲的损失,甲主张留置乙放于甲处的汽车一辆,是否有理

题型:单项选择题 A1/A2型题

When Dave was eighteen, he bought a secondhand car for 200 so that he could travel to and from work more (1) than by bus. It worked quite well for a few years, but then it got so old, and it was costing him (2) much in repairs that he decided that he had better (3) it.

He asked among his friends to see if anyone was particularly (4) to buy a cheap car, but they all knew that it was falling to pieces, so (5) of them had any desire to buy it. Dave’s friend Sam saw that he was (6) when they met one evening, and said, "What’s (7) , Dave"

Dave told him, and Sam answered, "Well, what about advertising it in the paper You may (8) more for it that way than the cost of the advertisement!" Thinking that Sam’s (9) was sensible, he put an advertisement in an evening paper, which read "For sale: small car, (10) very little petrol, only two owners. Bargain at 50. " For two days after the advertisement first appeared, there was no (11) . But then on Saturday evening he had an enquiry. A man rang up and said he would like to (12) him about the car. "All right, " Dave said, feeling happy. He asked the man whether ten o’clock the next morning would be (13) or not. "Fine, " the man said, "and I’ll (14) my wife. We intend to go for a ride in it to (15) it. "

The next morning, at a quarter to ten, Dave parked the car in the square outside his front door, (16) to wait there for the people who had (17) his advertisement. Even Dave had to (18) that the car really looked like a wreck. Then, soon after he had got the car as clean (19) it could be, a police car stopped just behind him and a policeman got out. He looked at Dave’s car and then said, "Have you reported this (20) to us yet, sir\

17()

A.read 

B.inserted 

C.answered 

D.placed

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