大众传播与受众需要的关系如何？

我国有句谚语：“乐观的性格是长寿的秘诀”。这句话说明了[ ]

A、我们必须有坚强的意志

B、乐观的心态是学业和事业成功的保证

C、乐观的心态对做好具体工作有直接的作用

D、乐观的心态对人的身体健康有重要作用

用括号内所给动词的适当形式填空。

小题1:---Did Tom enjoy seeing his old friends yesterday ?

---Yes, he did. He _____________ ( not meet ) his old friends for a long time.

小题2:The detective promised to the victim that he              (catch) the robber as soon as possible.

小题3:---Do you know the places of interest in Wuxi ?

---Yes, it is the second time I ___________ (visit ) the beautiful city.

小题4:He seemed to have difficulty _______________ (control) his actions.

小题5:Would you please ________ (not disturb) him when he is reading English.

小题6:While I was watching a football match on TV, my twin brother _______________ (pack) for the next day’s trip to Qingdao.

小题7:The sports meeting they were looking forward to __________ ( hold) yesterday.

小题8:As science ________(progress) quickly, our modern life becomes more and more colourful.

病理科自接受送检至签发病理报告书的时间是（）

A.3个工作日

B.4个工作日

C.5个工作日

D.6个工作日

E.7个工作日

高锰钢整铸辙叉，叉心宽40mm断面处，辙叉心垂直磨耗（不含翼轨加高部分），50kg/m及以下钢轨，到发线上超过6mm为轻伤。

生物体中有特殊的两类细胞：有质无核，如人成熟的红细胞；有核无质，如精子。这两类细胞经研究发现其寿命都很短，这一事实体现了（）

A.环境因素的影响

B.功能对寿命的影响

C.遗传因素的影响

D.核、质的相互依存关系