设集合M={X∈R|X≤-1},集合N={∈R|Z≥-3},则集合MnN=( ) 设集合M={X∈R|X≤-1},集合N={∈R|Z≥-3},则集合MnN=( ) 

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设集合M={X∈R|X≤-1},集合N={∈R|Z≥-3},则集合MnN=( ) 

(1)【◆题库问题◆】:[单选] 设集合M={X∈R|X≤-1},集合N={∈R|Z≥-3},则集合MnN=( )
A.{X∈R|一3≤X≤-1}
B.{Z∈R|Z≤-1}
C.{X∈R|X≥一3}
D.φ

【◆参考答案◆】:A

(2)【◆题库问题◆】:[单选] There is not much time left for you tocover everythin9,you’dBetter__________unimportantpoints.
A.1eave off
B.focus on
C.1eave out
D.concentrate on

【◆参考答案◆】:C

(3)【◆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。

(4)【◆题库问题◆】:[单选] 脑水肿的防治中哪项不正确(  )
A.限制晶体液输入
B.应用脱水、利尿药增加排出量
C.局部低温
D.冰袋血流降温
E.早期应用。肾上腺皮质激素

【◆参考答案◆】:A

(5)【◆题库问题◆】:[单选] 标Ⅲ导联的连接方式是 (  )
A.右上肢(+),左上肢(一)
B.右下肢(+),右上肢(一)
C.左下肢(+),右上肢(一)
D.左下肢(+),左上肢(一)
E.右下肢(+),左上肢(一)

【◆参考答案◆】:D

(6)【◆题库问题◆】:[单选] 如果神经纤维动作电位持续时间为2ms,那么,该神经纤维每秒内所能产生和传导的动作电位数不可能超过(  )
A.100次
B.200次
C.300次
D.400次
E.500次

【◆参考答案◆】:E

【◆答案解析◆】:略

(7)【◆题库问题◆】:[单选,材料题] _________根据以下内容,回答下面的题目。Insure means to protect _51_ a loss of money.Most people can budget their money so that their income will cover expected expenses _52_ food, clothing, housing, and public services.But, there is no way to know _53_ who will suffer a crisis (危机) such as a serious illness, fire, flood, or a car accident.Such crises usually _54_ great expensE.Even if people could predict crises, it would be hard to save enough money to _55_ the expenses.Insurance is a system _56_ a company collects money from many individuals and then pays certain expenses whenever one of those insured individuals is faced with a certain crisis.An insurance policy _57_ how much the insurance costs and how much the company will pay when a policy holder is faced with a certain crisis.There are many different kinds of insurance, _58_ hospital, motor-car and firE.Insurance can be rather expensive but most people buy insurance of some kinD.Insurance is something _59_ people buy and hope they will _60_ neeD._________
A.predict
B.ahead
C.in advance
D.earlier

【◆参考答案◆】:D

(8)【◆题库问题◆】:[单选] 一Cars moved very slowly in the l920’s.一Yes,but they_________move more quickly than 1910.
A.were to
B.did
C.will
D.can

【◆参考答案◆】:B

(9)【◆题库问题◆】:[单选] 迷走神经传出纤维的冲动可看作是(  )
A.控制系统
B.受控系统
C.控制信息
D.反馈信息
E.干扰信息

【◆参考答案◆】:C

【◆答案解析◆】:略

(10)【◆题库问题◆】:[单选] 正常人,声波传向内耳的主要途径是(  )
A.外耳道→鼓膜→鼓室气体→蜗窗→内耳
B.外耳道→鼓膜→听鼓链→前庭窗→内耳
C.外耳道→鼓膜→听鼓链→蜗窗→内耳
D.声波→颅骨→内耳
E.外耳道→鼓室气体→前庭窗→内耳

【◆参考答案◆】:A

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