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问题 单项选择题

上臂MRI技术不符内容是（）

A.可选用矩形表面线圈

B.可选用环形表面线圈

C.横轴定位灯对准上臂中点

D.常规选取矢、冠、横断面

E.脉冲序列选用STIR为最佳

答案

参考答案：E

解析：上臂MRI技术线圈选择：可选用矩形表面线圈、环形表面线圈等；体位及采集中心：头先进仰卧位，定位灯横轴线对准上臂中点；扫描方位及序列：常规扫描方位为矢状位、冠状位及横断位；脉冲序列：SE、STIR、GRE、FSE等。

单项选择题

美国科学家泰勒几乎每天都有10个新想法，其中有9个半都是错的，但他并不在乎，仍然孜孜不倦地进行科学研究，“每天半个对的新想法”积累起来，使泰勒获得了巨大的成功，成为世界闻名的“氢弹之父”。
因此( )。

A．要创新就会犯错误
B．新想法总会有90%是错的
C．美国人并不在乎错误
D．泰勒是个善于创新的人
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填空题

Part 2


Questions 9-18


·Read the following passage and answer questions 9-18.
1. When one of your car tires goes flat, there are two things you can do. Groan and change or, if you don’t have a spare, stand helplessly behind the road and hope someone to your rescue. Now comes a third alternative, called Quickwheel. It is designed to get disabled motorists rolling again as quickly as possible.
2. Quickwheel is essentially a tiny trailer — complete with three tough little wheels of it’s own — that support the flat tire and enable the motorist to drive to the service station without losing much time or expending much energy. The product is manufactured in the Netherlands but is owned and marketed by a US company. Quickwheel inc. of Greenwich, Connecticut. According to the firm’s president, Robert Bockweg, the product meets each of the major concerns that consumers associate with flat tires: safety lost time and physical exertion.
3. To use it, motorists simply unfold the product to its fully extended position, set it in front of the disabled tire, drive the car on to the Quickwheel’s ramp and attach a special safety strap over the tire. The tire is then locked, or cradled, in Quickwheel’s metal frame. The device’s three wheels do the rest of work.
4. According to Quckwheel Inc., its product can be driven "four miles" at speeds of up to 45 miles per hour without any noticeable change in the vehicle’s breaking or steer operation. The company also claims that it can be used on just any type of car, jeep, mini-van or trailer.
5. Bockweg says that Quickwheel will be sold in the US, at a price of $150. Distribution agreements now being negotiated should make the product available in Japan, Canada and West Europe in the future.

Questions 9-13


·For questions 9-13, choose the best title for each paragraph from below.
·For each numberedparagraph (1-5), mark one letter (A-G) on the Answer Sheet.
·Do not mark any letter twice.
  • A. The future marketing of Quickwheel.
  • B. The advantages of the Quickwheel.
  • C. How does Quickwheel work
  • D. The ways of dealing with flat tires.
  • E. Quickwheel can get disabled motorists rolling again.
  • F. An introduction of Quickwheel.
  • G. Why is the Quickwheel invented

Paragraph 1: ______
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