正确答案: A

我们有可能争取较长时期的和平环境

题目：和平与发展成为时代的主题，意味着（　　）

解析：l987年，邓小平指出：“对于总的国 际局势，我的看法是，争取较长时期的和平是可能 的，战争是可以避免的。”他根据世界各种战略力 量实力对比的消长与变化，根据世界经济、科学技 术的发展态势和走向以及由此产生的一系列新矛 盾、新问题，得出了在相当长的一时期内争取和平 是可能的、世界大战是可以避免的论断，故“A” 正确。

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学习资料的答案和解析：

[单选题]

[单选题]The subject of this passage is ________．

根据以下内容，回答下面的题目。Researchers have found that REM (rapid eye movement) sleep is important to human beings．This type of sleep generally occurs four or five times during one night of sleep lasting five minutes to forty minutes for each occurrence．The deeper a person’s sleep becomes, the longer the periods of rapid eye movement．There are physical charges in the body to show that a person has changed from NREM (non-rapid eye movement) to REM sleep．Breathing becomes faster, the heart rate increases, and, as the name implies, the eyes begin to move quickly．Accompanying these physical changes in the body is a very important characteristic of REM sleep．It is during REM sleep that a person dreams．According to the passage, how often does REM sleep occur in one night?

physical changes in the human body

[单选题]_________

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．_________

take

[多选题]心肌梗死的缺血型改变应该是 （　　）

T波升支与降支对称

T波由直立变为倒置

S—T段抬高

可出现病理性Q波或QS波

[单选题]肝脓肿（　　）

根据以下选项，回答下面的题目：A．肝浊音区上升，肝区叩痛阴性B．肝浊音区下降，肝区叩痛阴性 C．肝区叩诊鼓音，肝区叩痛阴性D．肝绝对浊音界下移，肝区叩痛阴性E．肝浊音区上升，肝区叩痛阳性 肺气肿（　　）

[单选题]分泌肾素的是（　　）

近球细胞