标注球面时应在符号前加“Ф”。

如图所示是物体的运动图像，能表示该物体做匀加速直线运动的图像是 [ ]

A．

B．

C．

D．

妊娠期肝内胆汁淤积症可能导致婴儿新生儿神经系统后遗症。()

Questions 61—65 are based on Passage Two:Passage TwoAs the 21st century begins, a number of leaders in politics, education, and other professions believe that the US must adopt some new values to go along with the old traditional ones. What new values should Americans adopt This is a very difficult question to answer. Certainly, a greater value should be placed on the conservation of natural reasources; Americans should learn to use less and waste less. But conservation has never been a p value to Americans, who have believed that their country offered an endless,abundant supply of natural resources.Recently, progress has been made—more and more Americans are recycling their paper,cans,bottles,and other goods—but old wasteful habits died hard. Furthermore,the need to protect the environment may conflict with the need for jobs,as in the Northwest ,where conservationists battle lumber companies that want to cut down ancient redwood trees. A belief in the value of conservation is still compared with other American values; it can become per only as Americans see the need for it more clearly.In addition,Americans may need to place a p value on cooperation on a national scale to achieve important national objectives. The American idea of the national good has never been based on national cooperation but rather on the freedom of the individual, maintaining those conditions that provide the greatest freedom and prosperity for the individual . It is far more difficult for Americans to accept shared sacrifice for the common good and wellbeing of the entire country. For example ,although the majority of Americans believe that it is extremely important to balance the national budget and reduce the deficit, they do not want to see cuts in government programs that benefit them personally.The American value of competition also hinders the development of a spirit of national cooperation. Competition sometimes encourages feelings of suspicion rather than the mutual trust that is necessary for successful national cooperation.Although Americans often cooperate successfully on the local level—in neighborhood groups and churches, for example, on the national level, they may see themselves as part of an interest group that is competing with other interest groups for government funds. A request by the national government for shared sacrifice may be seen as coercive and destructive rather than voluntary and constructive. However, the demands for the 21st century may compel Americans to place a greater value on national cooperation to solve problems that affect them all, directly and indirectly.

The author gave an example in the third paragraph in order to ().

A．emphasize the need to place a per value on national cooperation

B．explain why the American idea has been based on individual freedom

C．illustrate the fact that the Americans will not sacrifice their personal interest for the good of the entire country

D．support the idea that Americans need the spirit of national cooperation to achieve important national objectives in the 21st century

测量附着水平，恰当距离是（）。

A.龈缘一釉牙骨质界

B.牙颈部一袋底

C.龈缘一袋底

D.釉牙骨质界一袋底

E.牙颈部一釉牙骨质界

结核病患者的碳水化合物供给量为（）

A.小于正常成人推荐摄入量

B.等于正常成人推荐摄入量

C.大于正常成人推荐摄入量

D.等于机体实际耗能量

E.不限