关于机体非特异性免疫的叙述,正确的是() A.在种系发育和进化中形成 B.与生俱来,

题型:多项选择题

问题:

关于机体非特异性免疫的叙述,正确的是()

A.在种系发育和进化中形成

B.与生俱来,人皆有之

C.对某种细菌感染有针对性

D.与机体的组织结构和生理功能密切相关

E.对入侵的病菌最先发挥作用

考点:突发急性传染病知识竞赛突发急性传染病知识竞赛题库
题型:多项选择题

已知不等式2x+1≤5,那么x的正整数解是______.

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科学家设想,人类将来可能移居月球,如果能实现的话,下列说法错误的是(  )

A.月球居民将无法直接对话

B.月球居民依然可以测量温度

C.月球居民仍可用电灯照明

D.月球居民将看不到日食、月食现象

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We all make excuses.

But the successful ones are those who can kill the excuses like the miserable maggots they are.

I’m too tired. I don’t have the time. I don’t feel motivated. I’d rather do nothing. I don’t have the money, equipment, space. I can’t because …

We’ve all made the excuses. Here’s how to kill them.

See the positive. Excuses are usually made because we don’t feel like doing something — we’re accentuating the negative. Instead, see the fun in something, the joy in it. And maintain a positive attitude, or you’ll never beat the excuses.

Take responsibility. Excuses are ways to get out of owning up to something. If we don’t have the time, money, equipment, etc., then it’s not our fault, right? Wrong. Take responsibility, and own the solution.

Find a solution. Just about every problem has a solution. Don’t have time? Start with just 5-10 minutes. Make the time. Wake earlier. Do it during lunch. Don’t have the energy? Do it when you have higher levels of energy. You’re smart. Figure out the solution.

See your goal. This is your motivation — your reason for doing it. Sure, you could just lay on the couch, but if you think about why you really want to pursue a goal, you’ll be motivated. Visualize that goal and just get started.

Be accountable. Have a workout partner, a project partner, a team, someone to report to. If you have to meet a coach or partner, you’re more likely to do something.

Watch this. Then go an do it.  

小题1:How many tips mentioned in the text to prevent excuses?

A.Four

B.Three

C.Six

D.Five小题2:The second paragraph is developed mainly by _______

A.providing common examples.

B.following the order of time.

C.making comparisons of excuses.

D.analyzing common excuses小题3:The definition of the underlined word” visualize” would most probably be ______

A.to view the outline of something by means of an X-ray.

B.to weaken or spoil the quality or efficiency of something.

C.to form a mental image of something incapable of being viewed.

D.to express the formal image of something capable of being seen.小题4:Why do you need a partner according to the passage?

A.because you are likely to make a report to someone.

B.because it’ll be more possible for you to do something wih a partner.

C.because you need a coach to help you do something.

D.because you like to do something with a partner or a coach.

题型:多项选择题

可用于肾癌栓塞的方法有()

A.明胶海绵栓塞法

B.碘化油栓塞法

C.不锈钢圈栓塞法

D.无水酒精栓塞法

E.联合栓塞法

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沉香横切面镜检可见()

A.中柱鞘内含晶纤维

B.薄壁细胞含草酸钙柱晶

C.薄壁细胞含草酸钙针晶

D.皮层细胞含草酸钙砂晶

E.薄壁细胞含草酸钙簇晶

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