患者，女，16岁，学生，左胸背部疼痛1个月后出现左下肢无力并加重4天来门诊。查体：左

The houses          . They will be finished next year.

A．are built

B．have been built

C．are being built

D．were built

根据汉语提示填写单词。

1. The music ________(听起来) like birds singing.

2. If you get a ________(机会) to go there, please take it.

3. The little boy was _______(惊讶) at the beautiful fish he could see in the sea.

4. The sign here ________(警告) you not to smoke.

5. It' s not ________(允许) to take the books out of the classroom.

6. The story happened a few ________(世纪) ago.

7. These days the workers are busy ________(生产) this kind of medicine.

8. His parents always ________(鼓励) him to study hard.

9. Tom is very ________(自豪) of his new car.

10. His son is living ________(国外) now.

空气的成分按体积分数计算，含量最多的气体是（　　）

A．二氧化碳

B．氧气

C．氮气

D．稀有气体

.延长信用期限，有可能会使（）。

A.收账费用增加

B.销售额增加

C.坏账损失增加

D.应收账款增加

进行EVDO的CE配置时，一块信道板可以配置（）块CMS5500芯片。