二尖瓣闭锁不全存在哪项体征 （　　）

(1)【◆题库问题◆】：[多选] 二尖瓣闭锁不全存在哪项体征（　　）
A．抬举样心尖搏动
B．心界扩大
C．心尖区收缩期杂音
D．P2亢进并分裂
E．S1亢进

【◆参考答案◆】：A,B,C,D

【◆答案解析◆】：略

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(2)【◆题库问题◆】：[单选] 《谏逐客书》的中心论点是（　　）
A．逐客正确
B．逐客错误
C．客利于秦
D．客有负于秦

【◆参考答案◆】：B

【◆答案解析◆】：【答案】B 【解题思路与技巧】 《谏逐客书》的中心论点是“臣闻吏议逐客，窃以为过矣”。事斯首先以史为证.列举秦国历史上四位明君任用客卿使秦国富强的事实;再将逐客与享用异国色乐珠玉对比，指出重物轻人非成就帝业之术;并分析逐客的危害.从而论证“非秦者去，为客者逐”的错误。因此选择B项。

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(3)【◆题库问题◆】：[单选]毛泽东明确提出“新民主主义”这一概念的著作是
A．《国民革命和农民运动》
B．《中国革命和中国共产党》
C．《新民主主义论》
D．《论人民民主专政》

【◆参考答案◆】：B

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(4)【◆题库问题◆】：[单选] You can borrow thatbicycle if you________．
A．want to
B．want it：
C．want to do
D．will want

【◆参考答案◆】：A

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(5)【◆题库问题◆】：[单选] 不属于咀嚼肌的是（　　）
A．咬肌
B．翼内肌
C．翼外肌
D．颞肌
E．颊肌

【◆参考答案◆】：E

【◆答案解析◆】：略

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(6)【◆题库问题◆】：[单选,材料题] __________根据以下内容，回答下面的题目。The death of a child, _51_ one’s own child,is something the mind can hardly comprehenD．It seems togo _52_ naturE．The end of a life that is still forming_53_ has just begun is an almost unthinkable cruelty．But it happens．Parents sometimes must witness the illness and death of the children_54_ whom they gave birth．And _55_ will ever fill theempty place that the dead child leaves behinD．Parents_56_ to die before their children, which is the natural order of life events．When the situation is reversed and a child dies _57_ the parents itseems wrong．Yet we never know why one person dies andanother lives．But we do know _58_ a child is gone, theparents still have a future, as grey and worthless as it may at first seem．Death may take the child, but the love never _59_．The sorrow after a child’s death is one ofthe longest and hardest type of _60_ to live with．And ittakes long to deal with the parents’ own emotions．__________
A．think
B．expect
C．like
D．surely

【◆参考答案◆】：B

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(7)【◆题库问题◆】：[单选] 下列关于M型受体的叙述，错误的是（　　）
A．属于胆碱能受体
B．能与毒蕈碱发生特异性结合（　　）
C．存在于副交感神经节后纤维的效应器细胞膜上
D．存在于神经肌肉接头的终板膜上
E．其阻断剂为阿托品

【◆参考答案◆】：D

【◆答案解析◆】：略

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(8)【◆题库问题◆】：[单选] 艺术家的审美创造能力指艺术创作中的___________。（　　）
A．想象能力
B．个人修养
C．技巧水平
D．发现能力

【◆参考答案◆】：D

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(9)【◆题库问题◆】：[单选] 调节肾上腺髓质激素分泌的最主要因素是（　　）
A．促肾上腺皮质激素
B．糖皮质激素
C．交感神经
D．肾素一血管紧张素
E．醛固酮

【◆参考答案◆】：C

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(10)【◆题库问题◆】：[单选] 根据下列短文，回答{TSE}题。　　Despite the fact that today viruses(病毒)are known to cause cancer in animals and incertain plants，there exists a great reluctance to accept viruses as being of importance in humancancer．Basic biological phenomena generally do not differ strikingly as one goes from one spe—cies to another．It should be recognized that cancer is a biological problem and not a problemthat is unique for man．Cancer originates when a normal cell suddenly becomes a cancer cellwhich multiplies widely and without apparent restraint．Cancer may originate in many differentkinds of cell，but the cancer cell usually continues to carry certain traits(特性)of the cell of origin．The transformation of a normal cell into a cancer cell may have more than one kind of causE．but there is good reason to consider the relationships that exist between viruses and cancer．　　Since there is no evidence that human cancer，as generally experienced，is infections，manypersons believe that because viruses are infections agents they cannot possibly be of importancein human cancer．However，viruses can mutate(突变)and examples are known in which a vi．rus that never kills its host can mutate to form a new strain of virus that always kills its host．Itdoes not seem unreasonable to assume that an innocuous(无害的)latent(潜伏的)virus mightmutate to form a strain that causes cancer．Certainly the experimental evidence now available isconsistent with the idea that viruses as we know them today，could be the causative(引起……的)agents of most，if not all cancer。including cancer in mall．{TS}Cancer should be considered to be a biological problem rather than a medical one because_________．
A．viruses are known to cause cancer in animals
B．at present，human cancer is not believed to be contagious(传染的)
C．there are many known causes for the transformation of a normal cell to a cancer cell
D．results of experiments on plants and animals do not vary greatly from species to species

【◆参考答案◆】：D