中科曙光公司2016年()宣布,全球首款亿级并发云服务器系统在天津正式量产,标志着云

题型:单项选择题

问题:

中科曙光公司2016年()宣布,全球首款亿级并发云服务器系统在天津正式量产,标志着云计算基础硬件设施进入全新的时代,通用服务器系统并发能力从“千万”级步入“亿”级。

A.11月28日

B.11月29日

C.11月30日

D.11月27日

考点:百科知识竞赛时事政治时事政治题库
题型:单项选择题

某地区从1964年开始使用杀虫剂杀灭蚊子幼虫,至1967年中期停用。下图是五年间蚊子幼虫基因型频率的变化曲线。R表示杀虫剂抗性基因,S表示野生敏感型基因。据图判断下列选项中正确的是

[ ]

A.R基因的出现是使用杀虫剂的结果

B.在不继续使用杀虫剂的环境中,SS基因型幼虫比RR基因型幼虫的生存适应能力低

C.该地区不再使用刹虫剂后,在未来种群中最终SS基因型的频率最高

D.使用杀虫剂后所发生的变化不属于自然选择的过程

题型:单项选择题

以下选项中,贷款担保方式与其他三项完全不同的是()。

A.商用房贷款

B.有担保流动资金贷款

C.设备贷款

D.无担保流动资金贷款

题型:单项选择题

在水平地面上放一个质量为M、倾角为α的斜面体,一个质量为m的木块沿斜面匀速下滑(如图),斜面体受到的力有(  )

A.重力、地面支持力、木块压力

B.重力、木块压力、木块的滑动摩擦力、地面支持力

C.重力、木块压力、木块的滑动摩擦力、地面支持力、地面的滑动摩擦力

D.重力、木块压力、木块的滑动摩擦力、地面支持力、地面的静摩擦力

题型:单项选择题

写出反应的化学方程式:磷燃烧_____________________________

题型:单项选择题

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.

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