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【单选题】
沃森和克里克在1953年提出了A.
发现细胞
B.
制造了世界上第一台电子显微镜
C.
建立细胞学说
D.
发现核分裂现象
E.
提出DNA双螺旋结构模型
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反馈参考答案：
举一反三
【单选题】Which of the following best expresses the essential information in the highlighted sentence? Incorrect answer choices change the meaning in important ways or leave out essential information.
A.
Modern empiricism attempts to invent a theory of the whole universe.
B.
Modern empiricism attempts to build a system of philosophies.
C.
Modern empiricism attempts to tackle certain problems one at a time.
D.
Modern empiricism attempts to develop a powerful logical techniqu
【单选题】潜水员潜水时呼出的气泡在水中上升的过程中,体积不断变大。关于气泡所受压强和浮力的变化情况,下列说法正确的是
A.
压强变大，浮力变大
B.
压强变大，浮力变小
C.
压强变小，浮力变大
D.
压强变小，浮力变小
【单选题】Which of the following best expresses the essential information in the highlighted sentence? Incorrect answer choices change the meaning in important ways or leave out essential information.
A.
President Hoover did no recognize the seriousness of the situation right away, and did not offer relief to the poverty- stricken citizens when he should have.
B.
President Hoover thought that the Great Depression was a mere passing incident in the history, and believed that things will take a better turn within two months.
C.
President Hoover did not offer relief to the poverty-stricken because he believed in individualism, and also assumed that the depression would not last long.
D.
President Hoover saw that the country's economy was in danger, but his firm belief in individualism prevented him from providing help to those in need of a relief.
【简答题】(2015·连云港)潜水员潜水时呼出的气泡在水面下上升的过程中,体积不断变大.关于气泡所受压强和浮力的变化情况下列说法正确的是 ( ) A.压强变大,浮力变大 B.压强变大,浮力变小 C.压强变小,浮力变大 D.压强变小,浮力变小
【单选题】邓小平理论首要的基本理论问题是( )
A.
什么是解放思想，怎样坚持解放思想
B.
什么是实事求是，怎样坚持实事求是
C.
什么是改革开放，怎样实施改革开放
D.
什么是社会主义，怎样建设社会主义
【单选题】邓小平关于建设有中国特色社会主义的首要的基本的理论问题是()
A.
什么是市场经济，怎样建立市场经济体制
B.
解放思想，实事求是
C.
什么是社会主义，怎样建设社会主义
D.
一个中心，两个基本点
【简答题】理论首要的基本理论问题,是要搞清楚什么问题?
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