康复医学的目的为（） A.药物应用 B.找出病因 C.预防 D.功能康复 E.手术治

2012年2月4日联合国安理会就法、英、德及有关阿拉伯国家等共同起草的涉及叙利亚问题决议草案进行表决。由于该草案的一些内容有违《联合国 * * 》的宗旨和原则，不利于叙利亚局势走向缓和。因此，中国投了反对票。中国投反对票的行为表明 [ ]

①中国奉行独立自主的和平外交政策

②中国是联合国五个安理会成员国之一

③中国维护《联合国 * * 》所规定的宗旨和原则

④中国和法国、英国不存在共同的国家利益

A．①②

B．②③

C．①④

D．①③

产后血性恶露转变为浆液性恶露多在（）

A.产后6周

B.产后1周

C.产后10日

D.产后2周

E.产后3日

下列关于使用棉絮钡餐诊断食道异物不正确的是（）

A.结合常规透视摄片，絮钡可有利于检出透光或密度较低的异物

B.异物较大，怀疑伴发食道炎症者，可使用稀钡

C.消毒棉撕成薄片网状，浸泡在黏稠钡剂中

D.无钡棉钩挂现象，也不能完全排除异物存留

E.絮钡可掩盖异物外形，加重阻塞，增加食管镜检的困难

The standardized educational or psychological tests, that are widely used to aid in selecting, assigning, or promoting students, employees, and military personnel have been the target of recent attacks in books, magazines, the daily press, and even in Congress. The target is wrong, for in attacking the tests, critics divert attention from the fault that lies with ill-informed or incompetent users. The tests themselves are merely tools, with characteristics that can be measured with reasonable precision under specified conditions. Whether the results will be valuable, meaningless, or even misleading depends partly upon the tool itself but largely upon the user.

All informed predictions of future performance are based upon some knowledge of relevant past performance. How well the predictions will be validated by later performance depends upon the amount, reliability, and appropriateness of the information used and on the skill and wisdom with which it is interpreted. Anyone who keeps careful score knows that the information available is always incomplete and that the predictions are always subject to error.

Standardized tests should be considered in this context. They provide a quick, objective method of getting some kinds of information about what a person has learned, the skills he has developed, or the kind of person he is. The information so obtained has, qualitatively, the same advantages and shortcomings as other kinds of information. Whether to use tests, other kinds of information, or both in a particular situation depends, therefore, upon the empirical evidence concerning comparative validity, and upon such factors as cost and availability.

In general, the tests work most effectively when the traits or qualities to be measured can be most precisely defined (for example, ability to do well in a particular course of training program) and least effectively when what is to be measured or predicted cannot be well defined (for example, personality or creativity). Properly used, they provide a rapid means of getting comparable information about many people. Sometimes they identify students whose high potential has not been previously recognized, but there are many things they do not do. For example, they don’t compensate for gross social inequality, and thus don’t tell how able an underprivileged younger might have been had he grown up under more favorable circumstances.

According to the text, which of the following statements is not true（）

A. Predictions do not always hold true

B. Some students "shine" unexpectedly

C. The supervisor of the test must be well trained

D. Personality tests often fall short of their purpose

气压传动由能源装置、（）、气动控制阀和气动辅件组成。把压缩气体的压力能转换为机械能的是（）。