为了提高中煤段的吸啜作用，中煤段中间室的风量比两端（）A、绝对强B、稍弱一些C、稍强

孟买和洛杉矶分别是发展中国家和发达国家具有代表性的城市。根据图18图19和“某月近地面平均气压沿两条纬线的变化图”资料，结合所学知识，完成小题：

小题1:关于图示季节两个城市气候特点说法正确的是

A．洛杉矶高温多雨

B．孟买高温多雨

C．孟买高温少雨

D．洛杉矶低温少雨小题2:随着城市的发展，孟买市在老城区之外建了一个新城区。主要是为了缓解哪些城

市问题

①交通拥堵

②环境污染

③居住拥挤

④用地紧缺

⑤治安恶化

A．①②

B．①②③

C．①②③④

D．①②③④⑤小题3:洛杉矶市城区分散，占地面积广，“空心化”现象突出。其今后发展应注意

①节约用地

②合理布局（城市功能合理分区）

③改造老城区

④ 优化环境（建设生态城市）。

A．①②

B．①②③

C．②③④

D．①②③④小题4:洛杉矶市北面有世界著名的工业区硅谷，对其说法正确的是

A．主要优势是煤铁资源丰富

B．不会受到世界金融危机的影响

C．气候宜人，环境优美

D．其生产企业仅仅向科技最发达的地区扩散

高渗性脱水补液应适当减慢输液速度，是为了避免发生()。

A．低钠血症

B．低钾血症

C．脑细胞水肿

D．低钙血症

E．心功能不全

在我国斑氏丝虫的主要传播媒介是（）

A.中华按蚊和嗜人按蚊

B.淡色库蚊和嗜人按蚊

C.微小按蚊和淡色库蚊

D.微小按蚊和中华按蚊

E.淡色库蚊和中华按蚊

Motivation is "the driving force within individuals that impels them to action." And goals are the sought-after results (1) motivated behavior.
Motivation can be either positive or negative (2) direction. We may feel a driving force toward some object or condition, (3) a driving force away from some object or condition. For example, a person may be impelled toward a restaurant to fulfill a need, hunger, and away (4) an airplane to fulfill a need of safety. Some psychologists refer to positive drives (5) needs, wants or desires, (6) negative drives as fears or aversions. (7) , though negative and positive motivational forces seem to differ dramatically (8) terms of physical and sometimes emotional activity, they are basically similar in (9) they both serve to initiate and sustain human behavior. (10) this reason, researchers often refer (11) both kinds of drives or motives as needs, wants and desires.
Goals, (12) , can be either positive or negative. A positive goal is one toward (13) behavior is directed and it is often referred to as an approach object. A negative goal is (14) from which behavior is directed away and it is sometimes referred to as an avoidance object. Since both approach and avoidance goals can be considered objectives of motivated behavior, most researchers refer to (15) types simply as goals. Consider this example. A middle-aged woman may wish to remain (16) attractive as possible. Her positive goal is to appear desirable, and (17) she may use a perfume advertised to make her irresistible. A negative goal may be to prevent her skin (18) aging, and therefore she may buy and use face creams. (19) the former case, she uses perfume to help her achieve her positive goal -- attractiveness; in the (20) case, she uses face creams to help avoid a negative goal -- wrinkled skin.

我国的政体形式是什么？