本神位于: A.耳门 B.听宫 C.听会 D.上关 E.下关

题型:单项选择题

问题:

本神位于:

A.耳门
B.听宫
C.听会
D.上关
E.下关

考点:中医主治医师中医针灸学中医针灸学
题型:单项选择题

某同学用下列器材测量一电阻丝的电阻Rx:电源E,适当量程的电流表电压表各一只,滑线变阻器R,电阻箱RP,开关S1、S2,导线若干。他设计的电路图如图(a)所示,具体做法:先闭合S1,断开S2,调节R和RP,使电流表和电压表示数合理,记下两表示数为I1,U1;再保持RP阻值不变,闭合S2,记下电流表和电压表示数为I2、U2

     

(1)请你帮他按电路图在实物图(b)上连线;

(2)写出被测电阻Rx=_______________(用电表的读数表示);

(3)此实验中因电流表有内阻,电压表内阻不是无限大,使被测电阻的测量值_______________真实值(选填“大于、小于或等于”)。

题型:单项选择题

聚氯乙烯(PVC)管是目前常用给水塑料管材,若处理不当可带来一定健康危害,其中可能具有致癌作用的物质是()。

A.聚氯乙烯树脂

B.氯乙烯单体

C.二氯乙烯

D.二氯乙烷

E.聚乙烯

题型:单项选择题

肉瘤相当于西医学的( )

A.纤维肉瘤

B.脂肪瘤

C.骨骼肌肉瘤

D.脂肪肉瘤

E.平滑肌肉瘤

题型:单项选择题

下列关于合同成立的说明,正确的是( )。

A.要约生效时合同成立
B.法律规定必须采用书面形式订立合同,当事人未采用书面形式,合同不能成立
C.采用合同书形式订立合同,在签字或者盖章之前,合同不能成立
D.承诺生效时合同成立

题型:单项选择题

A deal is a deal—except, apparently, when Entergy is involved. The company, a major energy supplier in New England, provoked justified outrage in Vermont last week when it announced it was reneging on a longstanding commitment to abide by the state’s strict nuclear regulations.

Instead, the company has done precisely what it had long promised it would not challenge the constitutionality of Vermont’s rules in the federal court, as part of a desperate effort to keep its Vermont Yankee nuclear power plant running. It’s a stunning move.

The conflict has been surfacing since 2002, when the corporation bought Vermont’s only nuclear power plant, an aging reactor in Vernon. As a condition of receiving state approval for the sale, the company agreed to seek permission from state regulators to operate past 2012. In 2006, the state went a step further, requiring that any extension of the plant’s license be subject to Vermont legislature’s approval. Then, too, the company went along.

Either Entergy never really intended to live by those commitments, or it simply didn’t foresee what would happen next. A string of accidents, including the partial collapse of a cooling tower in 207 and the discovery of an underground pipe system leakage, raised serious questions about both Vermont Yankee’s safety and Entergy’s management—especially after the company made misleading statements about the pipe. Enraged by Entergy’s behavior, the Vermont Senate voted 26 to 4 last year against allowing an extension.

Now the company is suddenly claiming that the 2002 agreement is invalid because of the 2006 legislation, and that only the federal government has regulatory power over nuclear issues. The legal issues in the case are obscure: whereas the Supreme Court has ruled that states do have some regulatory authority over nuclear power, legal scholars say that Vermont case will offer a precedent-setting test of how far those powers extend. Certainly, there are valid concerns about the patchwork regulations that could result if every state sets its own rules. But had Entergy kept its word, that debate would be beside the point.

The company seems to have concluded that its reputation in Vermont is already so damaged that it has noting left to lose by going to war with the state. But there should be consequences. Permission to run a nuclear plant is a public trust. Entergy runs 11 other reactors in the United States, including Pilgrim Nuclear station in Plymouth. Pledging to run Pilgrim safely, the company has applied for federal permission to keep it open for another 20 years. But as the Nuclear Regulatory Commission (NRC) reviews the company’s application, it should keep in mind what promises from Entergy are worth.

By entering into the 2002 agreement, Entergy intended to()

A. obtain protection from Vermont regulators

B. seek favor from the federal legislature

C. acquire an extension of its business license

D. get permission to purchase a power plant

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