问题 选择题

下列物质①氢氟酸②浓硫酸③氢氧化钠溶液④碳酸钠固体⑤氧化钙⑥浓硝酸,在一定条件下能与SiO2反应的有              (   )

A.①②⑥

B.全部

C.②③⑥

D.①③④⑤

答案

答案:D

SiO2为酸性氧化物具有酸性氧化物的通性;如能与氢氧化钠溶液、氧化钙反应;此外SiO2还具有一些特性:能与氢氟酸反应;能与碳酸钠固体反应;

SiO2与浓硫酸、硝酸均不反应;

单项选择题
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Built in 1794 for the 5th Duke of Bedford, this hotel in the heart of Bedford overlooks the River Ouse, which winds through the beautiful Bedfordshire countryside.

We offer a flexible approach to conferencing. With purpose-built meeting rooms offering a flexible and functional space, our hotel is designed for comfort and convenience. Day Delegate(代表/代表团), 24 Hour Delegate or room hire only can be arranged to meet your needs and we offer a range of food and drinks for all requirements.

The Bedford Swan Hotel provides an impressive range of conference, training and function rooms which are suitable for up to 250 delegates.

Our hotel is located 30 minutes drive from Luton Airport and a 20-minute walk from Bedford Train Station with regular trains to and from Central London.

What to expect:

• A professional service from the beginning

• Your own event consultant

• A great location with car parking

• Well equipped rooms perfect for your meeting or event

• Various Day Delegate packages

• Personalised dining and refreshment breaks

• Accurate billing

Discounted Day Delegate Rates from £35 per person

* Hold your meeting before 30th November 2013 and benefit from our special day delegate rates

* Day Delegate Rate from £35.00 per person

* Minimum numbers of 8 apply

Call us on 01234 346565 or e-mail us on info@bedfordswanhotel.co.uk

小题1:Bedford Swan Hotel is more suitable for _______.

A.busy sightseers

B.conference travelers

C.fresh trainees

D.event consultants小题2:Which of the following is true according to the text?

A.It takes you 20 minutes to walk here from Central London.

B.The Bedford Swan Hotel was built in the late 18th century.

C.The hotel is located sixty kilometres from Luton Airport.

D.Guests can get professional service by offering extra tips.小题3:From the advertisement above we can learn that Bedford Swan Hotel _______.

A.can serve up to 250 delegates

B.winds through Bedfordshire

C.can provide personalised billing

D.offers no car parking service小题4:The special discount will be given if _______.

A.a delegate of 8 apply for 24-hour-meeting rooms

B.guests pay £35.00 per person for the rooms they live in

C.you book a purpose-built meeting room on a special day

D.8 delegates hold a day meeting on November 2, 2013