世界上含沙量最大的河流上、中、下游的分界点是( ) A.兰州、银川 B.兰州、河

题型:选择题

问题:

世界上含沙量最大的河流上、中、下游的分界点是(  )

A.兰州、银川

B.兰州、河口

C.银川、旧孟津

D.河口、旧孟津

考点:黄河
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网络专题策划的原则和步骤?

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某机电工程安装公司承包本市某化工厂车间的洁净空调工程安装任务。其洁净空调设计等级为N7级,并安装了高效过滤器。为保证工程质量,机电安装公司在风管制作、系统严密性检验、系统调试等关键工作中采取了相应的措施。空调工程在竣工验收后,进行了综合效能测定。由于测定结果均符合设计要求,得到业主的好评。

综合性能全面评定由建设单位负责,设计与施工单位配合。综合性能全面评定的性能检测应由( )承担。

A.建设单位

B.有检测经验的单位

C.施工单位

D.专业检测单位

题型:选择题


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.

题型:选择题

银行经营活动的被视为首要原则是()。

A、效益性

B、安全性

C、流动性

D、稳定性

题型:选择题

蜗壳式离心泵,其流量大于额定流量时,泵内流体压力变化规律是()

A.从泵舌处到扩压管逐渐下降

B.从泵舌处到扩压管逐渐上升

C.一样

D.不一定

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