________ weekdays, what time do you get

患儿男，5岁。发热2周，近1周来膝关节肿痛，呈游走性。查体：体温38.2℃，咽部充血明显，扁桃体Ⅱ°肿大，胸部有淡红色充血性皮疹，部分成环形红斑，心率108次/分，听诊未闻及杂音，肺腹阴性，双膝踝关节红肿热痛，伴活动受限。实验室检查：白细胞12×10⁹/L，中性75%，淋巴12%，血红蛋白110g/L，即阴性，心电图正常。

提示：患儿出院后自行停药，出现低热，心悸气短，动则尤甚，舌质偏暗，苔薄白，查体：心律不齐，二尖瓣区可闻及Ⅱ级收缩期杂音。此时给予中药处方是（）

A.炙甘草、责冬、生地、阿胶

B.当归、苦参、麻仁、丹参

C.三棱、莪术、桃仁、红花

D.桂枝、白芍、知母、秦艽

E.五味子、赤芍、知母、黄柏

F.银花、连翘、黄芪、川芎

G.生地、丹皮、独活、桑寄生

H.乌头、附子、苍术、麻黄

假如做圆周运动的人造地球卫星的轨道半径增大到原来的2倍，仍做圆周运动，则[ ]

A．根据公式v=ωr可知卫星运动的线速度增大到原来的2倍

B．根据公式F=GMm/r²可知卫星所需向心力将减小到原来的

C．根据公式F=mv²/r可知卫星所需向心力将减小到原来的

D．根据上述选项B和C给出的公式可知卫星运动的线速度将减小到原来的

The questions in this group are based on the content of a passage. After reading the passage, choose the best answer to each question. Answer all questions following the passage on the basis of what is stated or implied in the passage.

Pretty much everybody agrees that clean air is a good thing, right Evidently not so. Since the 1960s, when people started talking about clean air in the first place, the American energy industry, which includes coal companies, oil companies, and utility companies, has dragged its heels on every initiative to improve the quality of the air we breathe. Even after the Clean Air Act of 1970 and its amendments in 1977 and 1990 made it clear that controlling air pollution is a national priority, these companies have found tricks and loopholes to avoid compliance.

Perhaps the most egregious loophole is the one that allows older power plants to disregard limits on sulfux dioxide emissions until they undergo a major renovation, at which point they have to comply. Sulfur dioxide from coal-burning power plants is the primary cause of acid rain in North America. The Clean Air Act states that when coal-burning power plants upgrade their equipment, they must then comply with sulfur dioxide limitations by either installing scrubbing equipment that cleans the emissions or using fuel with lower sulfur content. The law tied the timing of compliance to major renovations in order to give power plants a grace period in which to comply. Many power plants, however, have exploited a loophole in this law by instituting a series of "minor" renovations that, in effect, upgrade their equipment without requiring them to comply with the Clean Air Act. Some plants have cheated the system by undergoing "minor" renovations for decades.

The power companies claim that they have to resort to these underhanded measures because the cost of compliance with the Clean Air Act is too high. And if everyone else is cheating the system, why should they have to install costly sulfur dioxide scrubbers

This cost argument falls apart upon scrutiny. Since 1977, more than 400 power plants across the country have managed to comply with the restrictions and are still making money. The sulfur dioxide scrubbing equipment has turned out to be far less expensive than the power industry naysayers claimed it would be. Many power plants have even complied with the emissions limits and reduced their operating costs by switching from high-sulfur Appalachian coal to the low-sulfur coal produced in western states such as Wyoming and Idaho. Western coal is not only cleaner than eastern coal, but also, because it is generally closer to the surface, as much as 30 percent less expensive to extract.

Clearly, the costs of compliance with the Clean Air Act can be justified, but if these companies were honest, such justifications would not have to be made. If they were honest, they would acknowledge the costs of not complying: the health costs of increased rates of asthma and lung cancer in high-emissions areas; the environmental costs of acid-scarred forests and lakes; the aesthetic costs of a haze of sulfur dioxide cutting visibility across the eastern United States to only half of what it was in pre-industrial times. When you look at the true costs you have to ask, is any cost too high for clean air

According to the information given in the passage, sulfur dioxide emissions are linked to all except which of the following phenomena ？（）

A. Reduced visibility in the eastern United States

B. Damage to the ozone hole

C. Increased rates of asthma

D. Acid rain

E. Damaged forests

以下程序的功能是：从键盘输入一字符串，要求将每个单词中的第一个字母改成小写(如果原来已是小写字母，则不变)，然后输出转换结果，补足所缺语句。 main() { char str[200]； int i=0； while((______=getchar())!=’\n’)； str[i-1)=’\0’； for(i=0;str[i]!=’\0’;i++)if((str[i-1]==’ ’‖i==0)&&str[i]＞＝’A’&&str[i]＜＝’Z’) str[i]+=______； printf("%s\n",str)； }

24岁初产妇，G2POA1，其母亲及姐姐均为糖尿病患者，该孕妇怀孕以前查体无异常发现，现妊娠28周，OGTT（75g）示：空腹血糖5.4mmoUL，1小时血糖11.3mmol/L，2小时血糖8.4mmol/L，3小时血糖6.9mmol/L。

该孕妇终止妊娠的时机与方式，说法正确的是（）

A.加强母儿监护，控制血糖酌同时37周即应终止妊娠

B.血糖控制良好，无合并症，胎儿宫内状态良好，应等待至40周后终止妊娠

C.血糖控制不满意，伴有血管病变，合并重度子痫前期、胎儿生长受限，应促胎肺成熟后立即终止妊娠

D.无论有无合并症，均应剖官产终止妊娠

E.不应继续妊娠，利凡诺引产