已知△ABC的顶点为A(-4,1),B(1,-1),C(3,4),则△ABC是(  ) (A)锐角三

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(1)【◆题库问题◆】:[单选] 已知△ABC的顶点为A(-4,1),B(1,-1),C(3,4),则△ABC是(  ) (A)锐角角形(B)直角三角形 (C)等边三角形(D)等腰三角形

【◆参考答案◆】:D

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(2)【◆题库问题◆】:[单选] 上层建筑对经济基础的反作用表现为对经济基础的(  )
A.决定作用
B.支配作用
C.服务作用
D.促进作用

【◆参考答案◆】:C

【◆答案解析◆】:经济基础和上层建筑的关系是:经济 基础决定上层建筑,上层建筑对经济基础具有反作 用。上层建筑的反作用集中表现为土层建筑积极 地为经济基础服务,故选“C”。“D”说法错误,如果 上层建筑维护的是适合生产力发展的先进的经济 基础。则该上层建筑反作用的社会性质是进步的, 反之亦然。

·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。

(3)【◆题库问题◆】:[单选,材料题] We can conclude from this passage that avalanches________回答下面的题目Never laugh at a snow covered mountain!Laughter and yelling, during the avalanche season, can cause a deadly pile ofsnow.Huge snow slides are most common in mountains where there are steep slopesthat are well buried in snow and icE.The snow builds up slowly and lands verysoftly.This can create a very touchy, unstable situation.Tons of snowmay be held up by only the friction between snowflakes.The deep snow is like ahouse of cards.The slightest movement can cause it to fall.As soon assomething slips, this great mass of snow will come crashing down themountainsidE.Slides may be started by sound vibrations.They may also be started by the weight of wet, melting snow.Once an avalanchehas been triggered, the cause no longer matters.Moving down a steep slope, itpicks up great speed and added snow.Some avalanches travel as fast as twohundred miles per hour.The force of an avalanche will mow down anything in itspath.Whole houses have been swallowed up by these fast-paced piles of snow.Thewind that is caused by an avalanche is almost as destructive as the snowitselF.Winds from an avalanche have been known to travel as fast as those of atornado.So, when approaching a thicklysnow covered mountain, speak softly!Avalanches can be started by________
A.are common everywhere
B.are not very common
C.have killed people
D.are a thing of the past

【◆参考答案◆】:C

【◆答案解析◆】:选项A和B在文中并未提及。文中提到雪崩的强大力量,可以毁掉整座房子,人肯定也是有伤亡的。选项C是正确的。

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(4)【◆题库问题◆】:[单选] 下列各组词语,只有一个错别字的一组是(  )
A.详实词不达意冷寞一筹莫展
B.痉孪不经之谈偏辟励精图治
C.风靡蘖根祸种攀缘始作俑者
D.倾轧气冲宵汉弘扬扑溯迷离

【◆参考答案◆】:C

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(5)【◆题库问题◆】:[多选] 兴奋通过突触传递特征的叙述,错误的是(  )
A.突触传递只能从突触前神经末梢传向突触后神经元
B.突触传递需要的时间与冲动传导差不多
C.在中枢神经系统内,只有兴奋可以发生总和,而抑制不会产生总和
D.在反射活动中,传入神经上的冲动频率往往与传出神经发出的冲动频率一致
E.突触传递过程中,极易受内环境变化的影响

【◆参考答案◆】:B,C,D

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(6)【◆题库问题◆】:[单选] I have four lettersto write today and I have finished_________.
A.ones
B.the three
C.three
D./

【◆参考答案◆】:C

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(7)【◆题库问题◆】:[单选] 根据以下选项,回答{TSE}题:A.肺气肿B.气胸 C.右侧大量胸腔积液压迫性肺不张D.张力性气胸E.阻塞性肺不张 {TS}叩诊呈空瓮音的是(  )

【◆参考答案◆】:D

【◆答案解析◆】:略

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(8)【◆题库问题◆】:[多选] 视近物时眼的调节包括(  )
A.晶状体变凸
B.瞳孔缩小
C.视轴会聚
D.睫状肌收缩
E.悬韧带松驰

【◆参考答案◆】:A,B,C,D,E

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(9)【◆题库问题◆】:[单选] 函数y-=ƒ(x)满足ƒ(1)=2ƒ″(1)=0,且当x<1时,ƒ″(x)<0;当x>1时,ƒ″(x)>0,则有(  ).
A.x=1是驻点
B.x=1是极值点
C.x=1是拐点
D.点(1,2)是拐点

【◆参考答案◆】:D

【◆答案解析◆】:利用拐点的定义来确定选项.需注意的是:拐点是曲线上的点,应该是(1,2),而不是x0=1.

·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。·ℳ°.·※°∴ ╰☆╮ 。

(10)【◆题库问题◆】:[单选] ________at his modelplane over the weekend,he didn’t complete it.
A.As he workedhard
B.Hard as he worked
C.How heworked hard
D.How hard he worked

【◆参考答案◆】:B

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