在正规的商务应酬中，白色衬衫是商界男士的惟一选择。除此之外，（）有时亦可加以考虑。A

患者，男性，73岁。原有高血压病史，无明显诱因下近来感觉劳累性呼吸费力，加重1天。查体：一般状况可，体温正常，血压170／100mmHg，静息下呼吸30次／分，心率110次／分，双肺呼吸音清，下肺可闻及少许湿啰音，二尖瓣听诊区可闻及4级收缩期杂音，可及震颤，并向腋下传导。

心脏超声示二尖瓣关闭不全，左心房、左心室大，EF60%，并伴有肺动脉高压，需要的处理是（）

A.收住入院

B.硝普钠静脉滴注或微泵入

C.利尿剂静脉注射

D.硝酸甘油含服

E.毛花苷丙静脉注射

F.急诊行二尖瓣置换术

患者，男，41岁。咳嗽痰多，胸闷气喘，脘腹胀满，纳呆食少，治疗应首选（）

A.藿香

B.厚朴

C.佩兰

D.苍术

E.砂仁

桥上UM71轨道电路怎样调整？

完成句子

1. The performance of the host, ________________( 旨在)to please the audience and draw

    their attention, was greeted with a cold silence, however.(intend)

2. I'm afraid I won't be able to attend the meeting at 3 ∶00 p. m. next Monday. I ___________( 已

   经坐飞机到) New York long before then.(fly)

3. Come to my office tomorrow if ________________( 你方便的话). (convenient)

4. You'd better call him up ________________( 万一他记不清)the exact time.(remember)

5. The food must be eaten up within three days ________________( 一旦打开). (open)

6. A major problem arose at the meeting ________________( 要花多少钱) to complete the whole

   project.(cost)

7. He wished to forget everything ________________( 与原来生活有联系的)and start a new life.

   (associate)

8. In no case ________________( 允许他)to get up until he was completely recovered from his

    illness.(allow)

9. She is busy with applying for a patent recently, and has ________________( 没时间整理房间)

    which is in a mess now.(tidy)

10. Color blind people often find ________________( 难以区分)between blue and green.(distinguish)

煤层底板等高线图反映了煤层产状及其地质构造情况。