患者，26岁。近1个月来，以夜间咳嗽为主，痰中带血丝，伴低热，盗汗。应首先考虑的是（

阅读理解。

     Mr Grey was the manager (经理) of a small office in London. He lived in the country, and came to work

by train. He liked walking from the station to his office if it was not raining, because it gave him some exercises. One morning he was walking along the street when a stranger (陌生人) stopped him and said to him," You

may not remember me, sir. But seven years ago, I came to London without any money in my pocket  (口袋).

I stopped you in this street and asked you to lend (借) me some money, and you lent me five pounds (英镑),

because you said that you were happy to take a chance (机会) so as to give a man a start on the road to

success (成功)." Mr. Grey thought for a few moments and then said, "Yes, I remember you. Go on (继续)

with your story."" Well," answered the stranger," are you still willing to (情愿) take a chance to help me?"

1. Mr. Grey walked to his office only when the weather was _________.

A. bad 

B. fine

C. raining

2. Mr. Grey walked because _________.

A. he was poor

B. it was not raining

C. it helped him in good health (健康)

3.Mr. Grey _________ the stranger some years ago.

A. had stopped

B. had met

C.  had helped

4. The stranger _________ since then.

A. had been successful

B. had still been poor

C. had been rich

5. Now the stranger wanted to _________.

A. ask for some money again

B. give Mr. Grey his money back

C. help Mr. Grey

在括号里选择正确的字，与下面的字组成词语，用“○”圈出。   

（蒙 朦）胧    （倦 蜷）缩      （待 呆）在一起     

（振 震）响      浮（燥 躁）    （决 绝）不违章

下列物质：①硫；②铁；③碳；④蜡烛．它们在氧气中燃烧（用相应的序号填空）：

(1)发出明亮的蓝紫色火焰的是 _________ ；

(2)产生带刺激性气味的气体是 _________ ；

(3)能生成黑色固体的是 _________ ；

(4)只产生无色无味的气体并能使澄清石灰变浑浊的是 _________ ；

(5)发出白光，放出热量，在瓶壁上有水雾出现的是 _________ ．

宏观经济运行对证券市场的影响通常通过（）途径实现。

A．企业经济效益

B．居民收入水平

C．投资者对股价的预期

D．资金成本

两个亲本的基因型分别为AAbb和aaBB，这两对基因按自由组合定律遗传，要培育出基因型为aabb的新品种，最简捷的方法是（）

A.单倍体育种

B.多倍体育种

C.人工诱变育种

D.杂交育种