SWOT分析中的S、W、O、T分别表示（）、（）、（）、（）。

男性，48岁，右侧股骨头坏死、髋关节置换术后，行局部骨显像如图，最可能的诊断（）。

A.假体松动

B.右侧股骨骨膜无菌性炎症反应

C.假体感染

D.右侧股骨转移癌

E.以上都不是

B

Don't believe all of the stereotypes (模式化的形象) you may have heard about Americans．Even the ones that are true in general may not be true about specific individuals or a large part of the population．For example，although Americans tend to be louder than people from other cultures(especially at athletic events)，many of the people you meet will be quiet and polite．Some people may be intolerant，but most will be pleasant and welcoming．Remember that American films and television exaggerate(夸张)in order to generate excitement，and so present a rather false picture of what 1ife in the United States is really like．Therefore，tourists in the US are not always on their best behavior．

Americans do tend to be more informal than people from other countries．It is common for Americans to wear casual clothing to school and to greet professors by first name．However，good manners and politeness are always appreciated．If you are polite，and dress a little more formally than your American friends，it will not be poorly thought of.

However，some businesses require their employees to wear a uniform or a suit．It would be improper to wear a T-shirt and blue jeans to a job interview．Some of the more prestigious restaurants require a coat and tie．Americans tend to dress up for cultural events(the opera，theater and ballet)and to dress down for athletic events．Formal wear is required at weddings and funerals，or any other event with religious event．If you rely on the stereotypes，you will likely put yourself into an embarrassing situation

60. The underlined sentence probably means__________.

A. Some of the stereotypes you may have heard about Americans are not true

B. You should not believe the stereotypes you may have heard about Americans

C. None of the stereotypes you may have heard about Americans should be believed

D. None of the stereotypes you may have heard about Americans should not be believed

61. The passage is probably written for____________ .

A. Businessmen                 B. visitors to America

C. American students             D. American film--makers

62. The second paragraph suggests that__________.

A. most Americans are polite

B. people who are polite are welcome

C. casual clothing makes others uncomfortable

D. American students are impolite to their teachers

63. We can learn from the passage that________.

A. American films are mostly poor comedies

B. it is good manners to wear blue jeans to a wedding

C. Americans usually wear formal clothes in a theater

D. to dress formally makes others feel you are not easy to get on with

5岁患儿，反复咳嗽3个月，常于清晨发作，运动后加重，无发热，曾用多种抗生素治疗无效。外周血WBC6.2×10⁹/L，N0.50，胸片未见异常。

为确定诊断首选的检查是（）

A.超声心动图

B.血气分析

C.支原体抗体

D.胸部CT

E.气道高反应性测定

柱塞式注射成型机中的塑料仅靠料筒壁及分流梭表面向内传热，传热速率小，因此需要（）的料筒温度

A.较低

B.较高

C.一般

D.很低