下列叙述正确的是（ ） A．活泼金属钠用电解法冶炼 B．铜可以用置换法和电解法冶

下列哪项治用当归四逆加吴茱萸生姜汤（）

A.手足不温，脉沉实有力，腹痛便秘

B.手足热甚，脉洪大，呃逆纳差

C.手足汗出，脉浮缓，发热恶风

D.手足厥寒，脉细欲绝，便溏呕呃

E.手足寒，脉沉微，下利清谷

Last Friday my brother and I were driving home together after doing some shopping and gave our attention to an interesting conversation. Because of this distraction (分心)my brother took a wrong turn.

Unfortunately, the wrong turn took us towards a bridge and we had no way to turn back. Unwillingly, my brother paid the bridge fee and drove on. He was clearly frustrated by the mistake and the needless waste of $4.

We eventually reached an exit and, as we took it, my brother noticed a young fellow pulled over to the side of the road. He came out of his car and tried to phone someone. I was busy trying to figure out which way we would go next but my brother pulled over and asked the guy if he needed any help. And he did. He had a flat tire and needed a tool to get it off.

My brother gave him a wrench, and then began to help him change the flat. The young man said that this had been a bad week for him: earlier he had gotten into a minor car accident, and now this flat on his way home from work. But he called us “a breath of fresh air” and kept thanking us because he really would have been stuck if we hadn’t come along.

After we finished the job he thanked us again and pulled out $20 from his pocket and tried to give it to us. “No,” I said. “We were never supposed to even get on that bridge,we took a wrong turn. But now we know why we did. It was to help you. Thank you for turning our mistake into an opportunity to serve.” 

What I loved most was that my brother was able to see a chance to help. His reaction in the situation is a lesson for everyone and we felt so good the rest of the day.

小题1:When did the author and his brother notice the young man who had a flat tire?

A．Before they arrived at a bridge.

B．When they were passing through an exit.

C．When the young man stopped them for help.

D．After they came back to the right road.小题2:We can learn from the text that the writer’s brother ________.

A．didn’t know the roads well

B．was a warm-hearted young man

C．made the turn to help the young man

D．regretted making a wrong turn all the way home小题3:What did the young man mean by calling the writer and his brother “a breath of fresh air” ?

A．He had been in the hot sun waiting for help for so long.

B．His car’s air conditioner was broken.

C．They calmed him down by offering him a cold drink.

D．They changed his bad luck and the bad mood he was in.小题4:Which of the following sentences best describes the writer’s experience?

A．It’s no use crying over spilt milk.

B．God helps those who help themselves.

C．Nothing in the world is difficult for one who sets his mind to it.

D．If you light a lamp for somebody, it will also brighten your path.

骨折早期并发症是：（）

A．压疮

B．感染

C．缺血性骨坏死

D．神经损伤

如何确定抽样检验方案的各参数？

ARDS初期的临床特点是( )。

A．呼吸费力

B．无明显低氧血症

C．无明显发绀

D．无明显肺部体征

E．无胸部X线检查的阳性发现