女，40岁。疲乏无力，月经不规律，贫血。下列不能成为贫血原因的是（） A.慢性肾炎

单词拼写。

1. The committee c_________ of ten members.

2. If you d_________ 30 by 5, the answer is 6.

3. Would you like to do a crossword p_________?

4. This building was c________ in the 1810s and it has a history of about 200 years.

5. They married last month but I didn't attend their w__________.

6. We should do all we can to improve __________ (关系) between our two countries.

7. The position of the house combines quietness and __________ (方便).

8. The painting comes from his private __________ (收藏).

9. To our __________ (高兴), he passed the entrance examination.

10. Can you __________ (安排) for car to collect them from the airport?

生物的种类不同其基因就有所差别，生物的基因不仅控制物生物的形态结构，而且决定它的生活环境。如果一种生物绝灭，那么（   ）

A．所有的基因都会消失 `

B．所有的基因都会受到影响

C．基因的多样性会受到影响

D．基因的多样性不会受到伤害

双下肢对称性紫癜伴荨麻疹者常见于 （）

A.过敏性紫癜

B.再生障碍性贫血

C.激素性紫癜

D.血小板减少

E.特发性血小板增多症

珠江三角洲地区发展工业的有利条件是：①靠近港澳和东南亚、②工业发展历史悠久，工业基础雄厚、③有许多侨乡、④自然资源极为丰富 [ ]

A、①④

B、②④

C、①③

D、②⑧

主动脉瓣狭窄的动脉脉搏呈（）

A.上升缓慢，洪大而持续

B.上升缓慢，细小而持续

C.上升急促，洪大而持续

D.上升急促，细小而持续

E.上升缓慢，细小而间断