多选某物体以30m/s的初速度竖直上抛，不计空气阻力，g取10m/s2。5s内物

航天界专家接受记者采访时指出，在经过前四次无人飞船的试验后，我国成功发射了“神舟”五号载人飞船，但这仅仅是载人航天的第一步。在此之后，我国再发射载人飞船，会将飞船的一个太空舱留在太空轨道，使之成为空间实验室；通过多次发射，多个太空舱在太空对接，便可以形成真正的空间站；再向前发展，中国人探测月球甚至火星，也将不是一个遥不可及的梦想。

上述材料是如何体现量变与质变的辩证关系的？

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There exist cruel wars, fighting and sadness in the world today, so it’s not only necessary, but also essential to have a good sense of humor just to help us go through difficult times in our lives. Putting a smile on someone’s face when you know they are feeling depressed, as the saying goes, makes me feel good and warms my heart.

How would you feel if you could not joke around with your wife, husband, child, co-worker neighbor, close friend, or even just someone that you are standing in line with at your corner store? I am always saying things that make others smile or laugh, even if I don’t know the person I’m joking around with. My Grandma always found humor in everything she did, even if it was the hardest job anyone could imagine. This not only relieves stress in any situation, but also is a common manner to speak to others that are around you.

I know of a few people that don’t have a funny bone in their bodies, as they say. Everyone around them could be rolling on the floor after hearing a great joke and they would sit there without the slightest smile on their face. They don’t get the joke that makes others laugh. I am busting a gut while they just sit there, looking at me as if I were from outer space. How can people not get a really funny joke?

Laughing is essential to keep your stress levels under control. Without humor we would find ourselves with a lot of psychological problems, or on a lot of medications to keep us from going crazy. There is too much sadness in this present world. It drives people crazy. We all need to find a way to avoid the sadness and bring a little light into our lives. Therefore, I believe our best medicine is to get together and tell some jokes and have some fun laughing together.

小题1:According to the author, humor is useful in the aspect that ____________.

A．it can pick up people’s spirits

B．it can help people get on well with others

C．it can help get rid of the cruelty in the world

D．it makes people more confident小题2:The author answers the question in the second paragraph with ___________.

A．facts and descriptions

B．evidence and argument

C．examples and conclusion

D．stories and persuasion小题3:The underlined phrase “busting a gut” in the 3rd paragraph can be replaced  by        .

A．keeping silent

B．speaking loud

C．laughing hard

D．explaining carefully小题4:In writing the passage, the author mainly intends to __________.

A．talk about his own understanding of humor

B．encourage people to be humorous in daily life

C．introduce a practical way to get through daily life

D．convince people of the power of being optimistic about life小题5:What is the author’s attitude towards the present world?

A．Indifferent

B．Positive

C．Satisfied

D．Critical

我国1～19岁的首位死亡原因是____________，可以分为_____________和_____________两大类。

2000年的政府财政支出是（）。

A．9046亿元

B．12500亿元

C．15788亿元

D．18744亿元

患者男性，60岁，无痛性全程肉眼血尿，伴尿频症状，尿脱落细胞学见：癌细胞。行膀胱镜示：膀胱颈、三角区见褐色团块状结节，表面有溃疡，边缘隆起水肿。该患者最适合的手术方式是（）。

A.膀胱部分切除术+盆腔淋巴结清扫术

B.经 * * 膀胱肿瘤切除术

C.根治性膀胱全切除术

D.膀胱部分切除术

E.膀胱切开肿瘤切除术