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问题 多项选择题

在工程建设过程中，绝大多数争议都可以通过和解解决。建设工程争议和解方式有以下特点（）

A.简便易行，能经济、及时地解决争议

B.有利于消除合同当事人的对立情绪，维护双方的长期合作关系

C.争议的解决依靠当事人的妥协与让步，没有第三方的介入，有利于维护合同双方的友好合作关系，使合同能更好地得到履行

D.和解协议不具有强制执行的效力，和解协议的执行依靠当事人的自觉履行

答案

参考答案：A, B, C, D

单项选择题

可不使蛋白质变性的是

A．有机溶剂

B．重金属盐

C．盐析

D．加热震荡

E．强酸、强碱
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单项选择题

In one sense, we can trace all the problems of the American city back (91) a single starting point: we Americans don’t like our cities very much.
That is, on the (92) of it, absurd. After all, more than three-fourths of us now live in cities, and more are (93) to them every year. We are told that the problems of our cities are (94) more attention in Washington, and scholarship has discovered a whole new (95) in urban studies.
(96) , it is historically true: in the American psychology, the city has been a basically suspect institution, (97) with the corruption of Europe, totally lacking that sense of spaciousness and innocence of the (98) and the rural landscape.
I don’t pretend to be a scholar on the history of the city in American life. But my thirteen years in public (99) , first as an officer of the U. S. Department of Justice, then as Congressman, and now as Mayor of the biggest city in America have taught me (100) too well the fact that a p antiurban attitude (101) consistently through the mainstream of American thinking. Much of the (102) behind the settlement of America was in reaction (103) the conditions in European industrial centers and much of the theory (104) the basis of freedom in America was linked directly to the availability of land and the perfectibility of man outside the corrupt influences of the city.
What has this to do with the predicament of the modern city I think it has (105) to do with it. For the fact is that the United States (106) the federal government, which has historically established our national priorities, has simply never thought that the American city was "worthy" of (107) —at least not to the (108) of expending any basic resources on it.
Antipathy to the city predates the American experience. When industrialization (109) the European working man into the major cities of the continent, books and pamphlets appeared (110) the city as a source of crime, corruption, filth, disease, vice, licentiousness, subversion, and high prices.

A．particularly

B．almost

C．for instance

D．as for
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