正确答案: D

债务承担

题目：属于债的主体变更的是()。

解析：D。本题中，A、C是债的内容的变更，B是客体的变更，仅债务承担一项，是债务人发生变化，属主体变更，故D正确。

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举一反三的答案和解析：

[单选题]健全社会主义法制的基本要求是（　　）

有法可依、有法必依、执法必严、违法必究

[单选题]I remember__________ the gloves on the sofa, but they are not there now.

leaving

解析：remember to do sth．记得要去做某事，remember doing sth.记得做过某事。题干意思：我记得把手套放在沙发上，但现在却不见了。

[单选题]位于椎管前壁的韧带是 （ ）

后纵韧带

[单选题]The Voice of America began during the World War II when Germany was broadcasting a radio program to get international (21) . American officials believed they should (22) the German broadcast with words that they thought were the facts of world (23) . The first VOA news report began with these words in (24) : "The (25) may be good or bad, but we shall tell you the truth." Within a week, other VOA (26) were broadcasting in Italian, French and English.After the World war II (27) in 1945, some Americans felt VOA's (28) had to be changed, (29) the Soviet Union (苏联)became the enemy of America. They wanted to reach Soviet listeners. Then VOA began broadcasting in Russian.

support

解析：21．答案为C  本题为词汇题，要求正确选择词义。A商务，业务，B文化，C支持，D信息。美国之音VOA的广播开始于第二次世界大战期间，与此同时德国正在利用无线电广播以获得国际(舆论)的支持。

[单选题]根据以下选项，回答 95～96 题：

水利尿

[单选题]The best title for this passage is ______.

Computer--A Powerful Aid in Fighting Against Crime

解析：本题为主旨题。根据作者在文章中所述，警察是在电脑的帮助下才查到凶手使用的汽车的。如果没有电脑，此项工作是根本无法完成的，那么，查获罪犯也就成了几乎不可能的事情了。C选项的意思是：电脑——抗衡犯罪的强大而有力助手。

[单选题]Passage ThreeMy husband and children feel very happy to live here. They can't see that we live on a dirty street in a dirty house among people who aren't good. They can't see that our neighbors have to make happiness out of all this dirt. I decided that my children must get out of this. The money that we've saved isn't nearly enough.

is unhappy with the life they are living

解析：参见第一段。