题目内容

Be(OH)2 和Al(OH)3均具有两性。

A. 对
B. 错

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激光是工作物质受光或电刺激,经过反复发射反射传播放大而形成的强度大、方向集中的光束。

A. 对
B. 错

要努力提高全民族的思想道德素质和科学文化素质。Efforts must be made to upgrade the ideological and ethical of the entire people, and improve their cultural and scientific .

A. standards...levels
B. levels...standards

马克思主义是我们立党立国的根本指导思想。Marxism is the fundamental guiding principle for the of the Party and the of the country.

A. development…consolidation
B. consolidation…development

反腐倡廉，既要治标，又要治本。To combat corruption and build a clean government calls for efforts not just to the symptoms, but more importantly to the root causes.

A. address…tackle
B. tackle…address