关于核酸正确的叙述是A、核酸的基本组成单位是核苷的磷酸脂B、基本成分是磷酸、碱基和脱氧核糖C、DNA

What can we know from the incident in Paragraph Four？

A．Dave Bing cancelled the construction of the statue due to budget problems.

B．Detroit"s financial situation has been largely improved.

C．Dave Bing responded too emotionally toward the project plan.

D．Whether cancelling the statue project is right or wrong is open to debate.

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下列不属于病例发现途径的是

A、因症就诊或转诊检查

B、可疑者检查

C、一般人群筛查

D、高发病人群检查

E、重点行业对象检查

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Which of the following is TRUE according to the first paragraph？

A．It is human nature displaying contempt for someone who is defeated.

B．Detroit"s bankruptcy represents the decline of U. S. automobile industry.

C．Rise and fall is a natural law from which no one can escape.

D．Other Rust Belt cities are suffering similar dilemmas as Detroit is.

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富含核黄素的食物是

A、动物内脏

B、瘦肉

C、谷类

D、鲜豆类

E、坚果类

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"应为艾滋病患者提供社会支持，并给予经济、情感等方面的帮助"属于艾滋病健康教育

A、治"标"措施

B、"标""本"兼治措施

C、治"本"措施

D、消除社会歧视措施

E、以上均不正确

请帮忙给出正确答案和分析，谢谢！