关于心音的听诊，下列正确的是（　　）

(1)【◆题库问题◆】：[多选] 关于心音的听诊，下列正确的是（　　）
A．心音有4个
B．通常只能听到S1和S2
C．某些健康儿童和青少年可闻及S3
D．S4一般听不到
E．S2在心尖与胸骨左缘间听诊最清楚

【◆参考答案◆】：A,B,C,D

【◆答案解析◆】：略

(2)【◆题库问题◆】：[单选] 二氧化碳分压由高到低的顺序是（　　）
A．静脉血、肺泡、组织细胞
B．静脉血、组织细胞、肺泡
C．肺泡、组织细胞、静脉血
D．组织细胞、肺泡、静脉血
E．组织细胞、静脉血、肺泡

【◆参考答案◆】：E

(3)【◆题库问题◆】：[单选] 第一心音到第二心音期间代表（　　）
A．心室舒张期
B．心室收缩期
C．心房收缩期
D．心房舒张期
E．等容收缩期

【◆参考答案◆】：A

(4)【◆题库问题◆】：[单选] 根据下列短文，回答{TSE}题。　　There are various in which individual economic units Can interact with one another．Three basic ways may be described as the market system，the administered system and the traditional system．In a market system individual economic units are free to interact among each other in themarketplacE．It is possible to buy commodities from other economic units or sell commodities tothem．In a market，transactions may take place via barter or money exchangE．In a barter economy，real goods such as automobiles，shoes and pizzas are traded against each other．Obviously，finding somebody who wants to bade my old Car in exchange for a sailboat may not always bean easy task．Hence，the introduction of money as a medium of exchange eases transactions considerably．In the modern market economy，goods and services are bought or sold for money．　　An alternative to the market system is administrative control by some agency over all trans．actions．This agency will issue edicts or commands as to how much of each good and service should be produced，exchanged，and consumed by each economic unit．Central 01anaing may beone way of administering such an economy．The central plan，drawn up by the government,shows the amounts of each commodity produced by the various firms and allocated to differenthouseholds for consumption．This is an example of complete planing of production，consump—tion，and exchange for the whole economy．　　In a traditional society，production and consumption paUerns are governed by tradition：everyperson’S place within the economic system is fixed by parentage，religion and custom．　　　　　Transac—tions take place on the basis of tradition，too．People belonging to a certain group or caste mayhave an obligation to care for other persons，provide them with food and shelter，care for theirhealth，and provide for their education．Clearly，in a system where every decision is made on thebasis of tradition alone，progress may be difficult to achievE．A stagnant society may result．{TS}What is main purpose of the passage?
A．To outline contrasting types of economy．
B．To explain the science of economics．
C．To argue for the superiority of one economics．
D．To compare barter and money exchange markets．

【◆参考答案◆】：A

(5)【◆题库问题◆】：[单选] 依法治国，作为党领导人民治理国家的基本方略，被确立下来是在（　　）
A．党的十四大
B．党的十五大
C．党的十三大
D．党的十一届三中全会

【◆参考答案◆】：B

【◆答案解析◆】：十一届三中全会主要是确立了实事 求是的思想路线，以经济建设为中心的政治路线， 完成“重点”转移；十三大主要是论述了“初级阶 段”理论，概括了“基本路线”，提出了“三步走”战 略；十四大最重大的贡献就是对邓小平建设有中 国特色社会主义理论作了系统概括和阐述，并提 出了经济体制改革的目标是建立社会主义市场经 济体制。

(6)【◆题库问题◆】：[单选] 当血流通过下列哪一部位时，血压的降落最大（　　）
A．主动脉和大动脉
B．小动脉和微动脉
C．毛细血管
D．微静脉和小静脉
E．大静脉和腔静脉

【◆参考答案◆】：B

(7)【◆题库问题◆】：[单选] 下列关于债权的说法，不正确的是 （　　）
A．债权是对人权
B．债权具有排他性
C．债权具有平等性
D．债权具有相容性

【◆参考答案◆】：B

(8)【◆题库问题◆】：[单选]毛泽东阐述关于中国民主革命新道路理论的著作是
A．《星星之火，可以燎原》
B．《论反对日本帝国主义的策略》
C．《论持久战》
D．《新民主主义论》

【◆参考答案◆】：A

(9)【◆题库问题◆】：[单选] 哪些情况最能说明去大脑僵直是由骨骼肌牵张反射亢进引起的（　　）
A．横断脊髓后，断面以下僵直消失
B．切断腹根传出纤维，僵直消失
C．刺激网状结构易化区，引起僵直
D．刺激前角运动神经元，引起僵直
E．切断背根传入纤维，僵直消失

【◆参考答案◆】：E

(10)【◆题库问题◆】：[单选] Although he had stayed in that business for two years，_______he still wanted to switch to a different career．
A．and
B．but
C．yet
D．So

【◆参考答案◆】：C