房地产的经营使用方式主要是销售、出租、营业和自用。 ( )

血清学检查可作为霍乱早期、快速诊断的依据。

阅读短文，根据要求完成下面各小题。

     Failure (失败) is a part of life. No matter what we do, there are always two results: success and failure.

There is no doubt (怀疑) that every one of us wants to be successful, but we can't always avoid failure.

     People have different opinions about the failure. Some people regard failure as a bad thing. They hold

that they should always do everything well. If they fail in something, they will lose their confidence. Other

people regard failure as a chance to learn. They redo (重做) what they failed to do. They know complaining

won't help themselves.

     As an old saying goes, "Failure is the mother of success." As long as we keep to what is right and correct

what is wrong in time, we will have success. In my opinion, failure is not bad, it's not good, either.

1. Failure can make people lose their confidence. (T or F)

    ______________________________

2. Life without failure isn't true. (T or F)

    ______________________________

3. Put the underlined sentence (in Paragraph 1) into Chinese.

4. Why do some people regard failure as a chance to learn?

    _____________________________________________

5. What does the writer think about failure?

研究生物进化的最直接的证据是 [ ]

A．古代生存的生物   

B．现在生存的生物     

C．生物“进化树”   

D．古代生物的化石

近记忆丧失，时空定向力障碍，病情不易恢复的是（）。

A.酒精中毒兴奋期

B.酒精中毒共济失调期

C.酒精中毒昏迷期

D.酒精慢性中毒引起的Wemicke脑病

E.酒精慢性中毒引起的Korsakooff综合征

大型汽轮机组为什么要带低负荷运行一段时间后再做超速试验？