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【单选题】
在停戴角膜塑形镜后,最慢恢复的是(    )
A.
角膜厚度
B.
角膜曲率
C.
角膜形状(Rx值)  
D.
裸眼视力
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【单选题】What does the woman mention as a disadvantage of the process she describes?
A.
It hasn't been fully tested.
B.
It's quite expensive.
C.
It uses up scarce minerals.
D.
The gas it produces is harmful to the environment.
【单选题】关于招标信息发布的说法,错误的是( )。
A.
招标人对已发出的招标文件进行必要的澄清或者修改,应当在招标文件要求 提交投标文件截止时间至少15日前发出
B.
自招标文件或者资格预审文件出售之日起至停止出售之日止,最短不得少于5个工作日
C.
招标人或其委托的招标代理机构应至少在2家指定的媒介发布招标公告
D.
招标人或其委托的招标代理机构在2个以上媒介发布的同一招标项目的招标公告的内容应当相同
【单选题】The passage describes the magnetosphere as a barrier because ______.
A.
it is strongest in the polar regions and the magnetic lines bunch together
B.
it increases the speed of the particles from the solar wind
C.
it prevents particles from the solar wind from easily entering the Earth's atmosphere
D.
its position makes it difficult to be observed from the Earth
【单选题】招标人对已发出的招标文件进行必要的修改或者澄清,应当在招标文件要求提交投标文件截止时间至少( )_日前,以书面形式通知所有招标文件收受人。
A.
5
B.
15
C.
20
D.
30
【单选题】Which of the following statements describes one of the functions of the ballast system?
A.
To permit flooding of any fuel oil storage tank on any class of ship
B.
To use it as a secondary service system
C.
To store reserve feed or potable water for extended cruises
D.
To stabilize the ship by flooding certain designed tanks with seawater
【单选题】根据《铁路运输条例》规定,客运经营者不按照规定携带车辆营运证的,处()罚款
A.
10元以上100元以下
B.
20元以上200元以下
C.
100元以上1000元以下
D.
200元以上2000元以下
【单选题】Which of the following best describes the organization of the whole passage?
A.
The author tells his story of learning Arabic chronologically.
B.
By contrasting different means of teaching by Mr. Beheit and Mr. Ahmed, the author reveals his joys and sorrows on the way of learning a foreign tongue.
C.
The author describes possible difficulties of learning a tough foreign language before he illustrates how he achieves success in doing so.
D.
The author gives out his outlook of learning a foreign tongue through details of his own pains and gains in the learning process.
【简答题】Which of the following titles best describes the content of the text? [A] Using Computers to Assist Human Reasoning [B] Scientific Applications of Computers [C] Some Suggested Applications for AURA [D...
【单选题】Which of the following best describes the author's development of argument?
A.
introducing the issue→citing ways to deal with the issue→describing the actual status→offering reasons.
B.
describing the actual status→introducing the issue→citing ways to deal with the issue→offering reasons.
C.
citing ways to deal with the issue→introducing the issue→describing the actual status→offering reasons.
D.
describing the actual status→offering reasons→introducing the issue→citing ways to deal with the issue.
【单选题】计算机之所以能自动进行许多工作,是因为采用了( ). (3分)
A.
存储程序控制
B.
二进制形式表示数据
C.
CPU来控制整机工作
D.
超大规模集成电路
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