如右图所示,在倾角为θ的光滑斜面上有两个用劲度系数为k的轻质弹簧相连的物块A、B

题型:选择题

问题:

如右图所示,在倾角为θ的光滑斜面上有两个用劲度系数为k的轻质弹簧相连的物块A、B,质量均为m,开始时两物块均处于静止状态.现下压A再静止释放使A开始运动,当物块B刚要离开挡板时,A的加速度的大小和方向为(  )

A.0                B.2gsin θ,方向沿斜面向下

C.2gsin θ,方向沿斜面向上    D.gsin θ,方向沿斜面向下

考点:力的合成力的分解
题型:选择题

对函数f(x)=ax2+bx+c (a≠0,b、c∈R)作x=h(t)的代换,使得代换前后函数的值域总不改变的代换是(  )

A.h(t)=10t

B.h(t)=t2

C.h(t)=sint

D.h(t)=log2t

题型:选择题

(2009年1月福建会考7题)1949 年10 月l日,中华人民共和国中央人民政府宣告成立。其施政纲领是

A.《临时约法》

B.《共同纲领》

C.《中华人民共和国宪法》

D.《论联合政府》

题型:选择题

案例四:一般资料:钟某,女性,17岁,高中二年级学生,因害怕别人害自己多次从学校逃跑,内心极其恐惧,由家长送来咨询。案例介绍:钟某平时住校,学习刻苦,成绩较好。三个月前开始不知什么原因经常缺课,老师和同学发现后很关心,询问原因,钟某说上课时总是听到别人议论自己,在自己背后指指点点,自己受不了,后又说有人要害自己,是谁说不清。近一周来不敢到教室上课,也不敢呆在宿舍里,说宿舍里安了监视器,自己在宿舍的一举一动都被录下来。宿舍里其她同学纷纷劝说她没有这回事,但钟某不相信,要求回家住。回家后说家里也安了监视器,觉得世界太可怕,感觉在大街上才安全,已在外面坐了两晚,不觉得疲劳,精神也显得很兴奋,由家长送来求助。家长反映的情况:父母均是农民,没什么文化,但从小对她要求非常严格,钟某从小性格内向,听父母的话,很少与同学来往,学习用功,以高分考上县里的重点高中。在父母眼中她是一个好孩子,几乎没什么缺点。父母向老师同学了解知道没有别人议论她,多次解释都无法说服。钟某也说不出到底谁在说自己,但就是坚信不移。家人没有办法,带她来心理咨询。

单选:钟某的思维障碍包括()。

A.物理影响妄想

B.知觉妄想

C.钟情妄想

D.被害妄想

题型:选择题

细菌性肺炎的抗菌治疗包括()。

A.经验性治疗和抗病原体治疗

B.一般性治疗

C.广谱抗菌治疗

D.特殊性治疗

E.强力抗菌治疗

题型:选择题

When European Union (EU) leaders took delivery of Europe’s first draft of a constitution at a summit in Greece last June, it was with almost universal praise.

There was wide agreement that the text could save the EU from paralysis once it expands from 15 to 25 members next year. It would give Europe a more stable leadership and greater clout on the world stage, said the chairman of the Convention which drafted the agreement, former French President Valery Giscard d’Estaing.

Such praise was too good to last. As the product of a unique 16-month public debate, the draft has become a battleground. Less than four months after it was delivered, the same leaders who accepted it opened the second round of talks on its content this week by trading veiled threats to block agreement or cut off funds if they don’t get their way.

The tone was polite, but unyielding. In a bland joint statement issued when the talks opened on October 4, the leaders stressed the constitution, "represents a vital step in the process aimed at making Europe more cohesive, more democratic and closer to its citizens. "Sharp differences remain, though, between member countries of the EU over voting rights, the size and composition of the executive European Commission, defense co-operation and the role of religion in the new constitution.

Italian Prime Minister Silvio Berlusconi’s hopes of wrapping up a deal on the constitution by Christmas seem far from being realized. While the six founding members of the EU--Germany, France, Italy, the Netherlands, Belgium and Luxembourg--plus Britain and Denmark, want as little change as possible to the draft, the 10 mainly central European countries due to join the 15-nation bloc next year want to alter the institution’s balance.

Such small states are afraid their views will be ignored under the constitution and are determined to defend the disproportionate voting rights they won at the 2000 Nice Summit. EU experts fear such sharp differences will create exactly the paralysis in the EU the Convention was established to avoid.

The universal praise for the draft turned out to be()

A. short-lived

B. too good

C. totally wrong

D. very insightful

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