为了鉴别某纺织品成分是蚕丝(蛋白质)还是人造丝(合成纤维),可选用( ) A.滴

题型:选择题

问题:

为了鉴别某纺织品成分是蚕丝(蛋白质)还是人造丝(合成纤维),可选用(  )

A.滴加酒精

B.灼烧

C.滴加食盐水溶液

D.滴加食醋

考点:其他物质的检验
题型:选择题

产妇在产褥期内,出现肢体或关节酸楚、麻木、重着者,称为 ()

A.痹证

B.痿证

C.产后痉证

D.产后身痛

E.以上都不是

题型:选择题

男性不育症的主要原因,但除了()

A.泌尿系统感染

B.生殖系统感染

C.使用抗代谢药物

D.内分泌系统感染

E.精索静脉曲张

题型:选择题

从给定化合价的五种元素中,选择适当的元素写出下列有关物质的化学式:酸性氧化物_________;无氧酸_________;单质__________。

题型:选择题

Ice Hotel Quebec, located 30 minutes west of Downtown Quebec City, Canada, is only open during the winter season. The hotel is made entirely of ice. The two galleries at the Ice Hotel Quebec feature events such as ice painting and ice sculpture(冰雕) competitions.

Things to Do

Guests have a choice of different winter vacation activities, including cross-country skiing, ice skating, dog sledding (狗拉雪橇), ice fishing and sliding(滑行). Ice Hotel Quebec has a sauna( 桑拿浴),so remember to pack your bathing suit.

Rooms & Suites(套房)

The hotel offers 18 rooms and 14 theme suites built from 12,000 tons of snow and 400 tons of ice. The walls at Ice Hotel Quebec are four feet thick and allow the hotel to keep a temperature of -2℃ to -5℃.

The furniture at the hotel is made of snow and ice, including the beds. The beds are equipped with a thick foam mattress(泡沫床垫)and an extra thick sleeping bag. That is enough to prevent you from catching a cold.

Vacation Tip

Ice Hotel Quebec offers 30-minute guided public tours daily from 10:30am to 4:30pm. It costs $15 CAD for adults, $7.5 for children (under eight), $13for students\seniors (above sixty), and $42 for families.

Plan This Vacation

Ice Hotel Quebec-Canada will be open for its sixth season from January 5th to April 1st. Costs for overnight stays start at $199CAD per person.

If you’re looking for something really different to do on your next trip, think creatively and plan to visit the truly unusual Ice Hotel Quebec!

小题1:If you visit the Ice Hotel, you can enjoy the following EXCEPT___________.

A.going fishing

B.going skating

C.appreciating ice sculptures

D.holding an ice party小题2:Sleeping is not a problem in the Ice Hotel because ____________.

A.the rooms are made of ice

B.the temperature is as high as -2℃

C.the sleeping bags are warm

D.the walls are four feet thick小题3:If Mr. Smith attends a 30-minute public tour with his wife and seven-year-old twin sons, he should pay at least_________.

A.$37.5 CAD

B.$45 CAD

C.$42CAD

D.$199 CAD

题型:选择题

信访工作过程中,接待群众来访的基本要求是()。

A.坚持原则

B.高度负责

C.严肃认真

D.耐心疏导

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