试题与答案

(浙江省宁波市鄞州高级中学08-09学年高三上学期期中考试,化学,21)为确定下

题型:选择题

题目:

(浙江省宁波市鄞州高级中学08-09学年高三上学期期中考试,化学,21)为确定下列置于空气中的物质是否变质,所选检验试剂(括号内物质)不能达到目的的是

A.HCHO溶液(石蕊试液)

B.Na2SO3溶液(BaCl2

C.KI(淀粉溶液)

D.FeCl2溶液(KSCN)

答案:

答案:B

A项加入石蕊试液若变红,则HCHO溶液变质成HCOOH; B项中缺少稀盐酸,不能达到目的;C项加入淀粉溶液若变蓝,则KI氧化变质成I2;D项加入KSCN溶液后,若溶液变血红色,则FeCl2溶液氧化变质FeCl3溶液。

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题型: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.

6().

A.highest 

B.easiest 

C.luckiest 

D.worst

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