侵蚀性葡萄胎在局部主要侵蚀（） A.底蜕膜 B.包蜕膜 C.子宫内膜 D.子宫内膜和

“主父偃说上（汉武帝）曰：‘今诸侯或连城数十，地方千里。……今诸侯子弟或十数，而适嗣代立，余虽骨肉，无尺地之封，则仁孝之道不宣。愿陛下令诸侯得推恩子弟以地，侯之。彼人人喜得所愿……’于是上从其计，亦如己愿”。上述材料中，主父偃建议的巧妙之处在于[ ]

A．以广建侯国的办法来拱卫中央 * *       

B．有利于刘姓 * * 且抚慰了异姓功臣  

C．以分封王国子弟办法来调整统治者内部关系

D．以宣扬仁孝之道为由而削弱地方王国的势力

用于灭菌检测化学指示剂有指示卡、指示管和指示胶带。正确的是（）。

A.指示卡和指示管用于各种物品包装表面检测

B.指示胶带用于物品包装表面检测

C.物品包装表面灭菌检测可用指示卡在各包装外贴封

D.指示管用于各种物品包装表面检测

E.指示卡用于各种物品包装表面检测

Hardin argued that grazing land held in common (that is, open to any user) would always be used less carefully than private grazing land. Each rancher would be tempted to overuse common land because the benefits would accrue to the individual, while the costs of reduced land quality that results from overuse would be spread among all users. But a study comparing 217 million acres of common grazing land with 433 million acres of private grazing land showed that the common land was in better condition.
Which of the following, if true and known by the ranchers, would best help explain the results of the study ？（）

A．With private grazing land, both the costs and the benefits of overuse fall to the individual user.

B．The cost in reduced land quality that is attributable to any individual user is less easily measured with common land than it is with private land.

C．An individual who overuses common grazing land might be able to achieve higher returns than other users can, with the result that he or she would obtain a competitive advantage.

D．If one user of common land overuses it even slightly, the other users are likely to do so even more, with the consequence that the costs to each user outweigh the benefits.

E．There are more acres of grazing land held privately than there are held in common.

男，35岁。低热、乏力、腹泻2月余，体重下降约5kg。查体：T 37.4℃，颈部及腋窝可触及淋巴结肿大，无压痛，活动度好，双肺呼吸音清，心率86/min，律齐，未闻及杂音，用肋下2cm，无压痛，余未见异常。

外周血HIV载量为10000拷贝/毫升，有关该患者的治疗，正确的是

A．外周血CD⁴⁺T细胞计数＞0.5×10⁹/L时无须治疗

B．核苷酸类反转录酶抑制剂单药治疗

C．蛋白酶抑制剂单药治疗

D．核苷酸类反转录酶联合蛋白酶抑制剂治疗

E．高效抗逆转录病毒治疗

麻黄杏仁甘草石膏汤的病机是（）

A.表病误下，外证不解，气逆于肺

B.风寒束表，肺气不宣

C.汗下后，邪气内传，热壅于肺

D.外有风寒，内有郁热

E.以上都不是