问题 选择题

小明足部受伤发炎,医生在其左臂静脉滴注抗生素,药物到达足部的途径是(  )

①左心房;②右心房;③右心室;④主动脉;⑤肺动脉;⑥肺静脉;⑦上腔静脉;⑧下腔静脉;⑨股动脉;⑩左心室.

A.①③④⑥②⑦⑧⑨⑩

B.⑦②③⑤⑥①⑩④⑨

C.⑦②③⑤⑥①⑧④⑨

D.⑦②③⑥⑤①⑩④⑨

答案

足部受伤发炎,医生在其左臂静脉滴注抗生素,药物到达足部需要经过上肢静脉→上腔静脉→右心房→右心室→肺动脉→肺部毛细血管→肺静脉→左心房→左心室→主动脉→股动脉→足内毛细血管.所以B选项符合题意.

故选B

单项选择题

Honesty comes in many forms. First there’s self honesty. Is what people see the real article or do you appear through smoke and mirrors I find that if I try to be something I’m not, I feel unsure of myself and take out a part from my PBA (personal bank account). I love how singer Judy Garland put it, "Always be a first class version of yourself, instead of a second class version of somebody else. "
Then there’s honesty in our actions. Are you honest at school, with your parents, and with your boss If you’ve ever been dishonest, I think we all have, try being honest, and notice how whole it makes you feel. Remember, you can’t do wrong and feel right. This story by Jeff is agood example of that:
In my second year of study, there were three kids in my math class who didn’t do well. I was really good at it. I would charge them three dollars for each test that I helped them pass. I’d write on a little piece of paper all the right answers, and hand them off.
At first I felt like I was making money, kind of a nice job. I wasn’t thinking about how it could hurt all of us. After a while I realized I shouldn’t do that any more, because I wasn’t really helping them! They weren’t learning anything, and it would only get harder down the road. Cheating certainly wasn’t helping me.
It takes courage to be honest when people all around you who are getting away with cheating on tests, lying to their parents, and stealing at work. But, remember, every act of honesty is a deposit into your PBA and will build strength.

In the last paragraph the author mainly wants to express ______.

A.one must be brave to be honest
B.it’s difficult to be honest when others are not
C.one should be honest when making a deposit
D.honestly in one’s actions can help him in the future

填空题