正确答案: ABCD

中国是受帝国主义压迫的国家 民族资产阶级的力量过于软弱 中国的反动统治者不容许 它脱离中国实际，也没有得到中国广大群众的拥护

题目：资产阶级的共和国，外国有过的，中国不能有，这是因为

解析：ABCD

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举一反三的答案和解析：

[单选题]中华人民共和国成立初期，建立社会主义国营经济的主要途径是（ ）

没收官僚资本

[多选题]我国的“三大诉讼”是

民事诉讼

刑事诉讼

行政诉讼

解析：ABC

[多选题]近代以来中华民族面临的两大历史任务，就是争取民族独立、人民解放和实现国家富强、人民富裕。这两大历史任务的对立统一关系是

两大历史任务的主题、内容与实现方式都不一样

前一个任务是从根本上推翻半殖民地半封建的统治秩序，改变落后的生产关系和上 层建筑；后一个任务是要改变近代中国经济、文化落后的地位和状况，发展社会生产力，实现中国的现代化

前一个任务为后一个任务扫除障碍，创造必要的前提

后一个任务是前一个任务的最终目的和必然要求

解析：ABCD

[单选题]今后我国农业和农村工作的出发点和落脚点是

增加农民收入

解析：[答案] D

[多选题]下列行为中，构成包庇罪的有( )

明知是犯罪的人而作假证明包庇

旅馆业、饮食服务业人员，在公安机关查处卖淫嫖娼活动时，为违法犯罪分子通风报信，情节严重的

解析：[答案] BD

[单选题]下列蛋白质中，属于植物细胞壁结构蛋白的是

伸展蛋白

[单选题]According to the passage, downshifting emerged in the U.S. as a result of _______ .

the economic situation

解析：选［D］。文章第五段第一句话为本题提供了线索。"While in American the trend (downshifting) started as a vacation to the economic decline"，表明在美国这种趋势是经济衰退的反应。

[单选题]Passage FourMost people do not think of fishes and other sea animals as having voices, and of those who are aware of the fact that many of them can "speak", few understand that these "conversations" have significance. Actually, their talk may be as meaningful as much of our own. For example, some sea animals use their "voices" to locate their food in the ocean expanses (广阔的区域); others use their "voices" to let their fellows know of their locations; and still others, as a means of obtaining mates. Sometimes, "speaking" may even mean the difference between life and death to a sea animal. It appears in some cases that when a predator (食肉动物) approaches, the prey (被捕的动物) depends on no more than the sounds it makes to escape.

know the meaning of their conversations

解析：答案为A。根据第一段第一句， and of those who are aware of the fact that many of them can "speak", few understand that these "conversations' have significance 符合题意。其他选项在文中没有提及。