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问题 选择题

为了获得pH=9的溶液中，可以向pH=13的溶液中，添加（  ）的液体。

A．pH=4

B．pH=7

C．pH=9

D．pH=10

答案

AB

根据溶液的酸碱性和溶液pH大小之间的关系，要使pH=13的溶液减低到pH=9，只能加入比pH=9的溶液，故选AB

多项选择题 案例分析题

患者男，80岁。停止排气、排便3d，腹痛、腹胀并呕吐1d急诊入院。体格检查：意识模糊，精神差，眼球下陷，呼吸深，18次/min，心率65次/min，偶见室性期前收缩，血压80/65mmHg，腹轻胀，有轻压痛，反跳痛可疑，3h无尿。X线腹部平片示：右半结肠以上有较多气液平面。

为明确诊断，应进行的检查及处理措施是（）

A.诊断性腹腔穿刺

B.急请普外科会诊

C.心电图检查

D.血电解质检查

E.快速补充平衡盐溶液

F.动脉血气分析
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单项选择题

During our two months on the road, Bennett and I had a really (1) experience with a good, honest (2) and some helpful mechanics.

We were driving east on Highway 10 when our "chick engine" light came on. We limped of a(n) (3) into Las Cruces. We had a real car (4) Bennett nursed the ear into a local garage. By this time the car was missing so (5) it was shaking all over. This was the (6) time to arrive at a garage—late Friday afternoon. Service adviser Scott was busy (7) paper work and customers as we (8) our problems. (9) he was already "ten cars behind", he told us to pull the car into the garage.

Lincoln, who we later (10) was one of the two motor technicians, took (11) of our car repairing. He and Scott and some other mechanics stayed several hours after closing, (12) the car.

Early the next morning (the shop was officially closed on Saturdays), Lincoln finally located the (13) and fixed it easily within only (14)

Later Scott (15) out to us that it was our attitude that helped. "You didn’t come into the place demanding this or that. You showed an (16) of our problems on a busy Friday afternoon. Customer’s attitude means a lot. " He was right in some way, customers should show (17) and understanding to people who (18) them. (19) people were extremely busy, they found way to at least try and help when they are met with politeness.

The pleasant experience I had shows that (20) for other people can always help.

2（）

A.station 

B.studio 

C.factory 

D.garage
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