癫痫治疗时间较长，一般认为在临床症状消失后，仍应服药（） A.3个月 B.6个月 C

E

Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri (MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

"To provide enough power, we need certain methods with high energy density(密度)" ,said Jae Kwon, assistant professor of electrical and computer engineering at MU. "The radioisotope (放射性同位素) battery can provide power density that is much higher than chemical batteries. "

Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro/nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.

"People hear the word ’ nuclear’ and think of something very dangerous," he said, "However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems. "

His new idea is not only in the battery’ s size, but also in its semiconductor(半导体). Kwon’ s battery uses a liquid semiconductor rather than a solid semiconductor.

"The key part of using a radioactive battery is that when you harvest the energy, part of the ra- diation energy can damage the lattice structure (晶体结构) of the solid semiconductor," Kwon said, "By using a liquid semiconductor, we believe we can minimize that problem. "

Together with J. David Robertson, chemistry professor and associate director of the MU Re- search Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’ s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

Liquid semiconductor is used to().

A. get rid of the radioactive waste

B. test the power of nuclear batteries

C. decrease the size of nuclear batteries

D. reduce the damage to lattice structure

郑和是我国也是世界历史的伟大的航海家，他是[ ]

A．汉族人

B．回族人

C．满洲人

D．畏兀尔人

一般是在( )阶段往往提出一系列控制指标及相应要求，以保证场地设计的经济性。

A．区域规划

B．总体规划

C．控制性详细规划

D．修建性详细规划

2009年5月，某省人民政府所在地的市中级人民法院受理了本省与外省两企业之间的经济纠纷。在该案审理之前，审判人员先后接到市人民政府有关领导的多份批示，指出该案涉及本省重大经济利益，要求审判人员公正审理。经审理，法院判决本省当事人一方败诉。事后，省人民代表大会常务委员会明确指出，该判决严重影响本省经济利益，损害了投资环境，要求市人民代表大会常务委员会依法行使职权，纠正法院的判决。
请结合我国宪法学的相关知识，分析上述材料并回答下列问题：

市人民政府有关领导的做法是否合法请说明理由。

非均质堤防的排渗设施主要有（）和内部式排水。

A.沙石反滤层

B.土工织物反滤层

C.梢料反滤层

D.表面式排水