问题 选择题

下列关于化学用语的表述正确的是(   )

A.碳—14核素:

B.乙醇的结构简式:C2H6O

C.HClO的结构式为H-O-Cl

D.甲烷分子的球棍模型:

答案

答案:C

题目分析:碳元素的原子序数是6,A不正确,应该是;B不正确,C2H6O表示分子式,结构简式应该是CH3CH2OH;D不正确,该模型表示的是比例模型,球棍模型是,所以答案选C。

选择题
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Summerfest Arts Faire 2010

Summerfest Arts Faire is an arts festival in Logan, Utah, celebrating local, regional and national artists. Visitors can expect to see high quality artworks from nationally recognized artists. Summerfest also features live entertainment and a variety of delicious food.

Place: 50 North Main Street, Logan, UT 84321

Dates: June 17-June 19, 2010

Time: Thursday-Saturday 1:00 pm-10:00 pm

Venture Outdoors Festival

The 5th Annual Venture Outdoors Festival is a celebration of outdoor recreation (娱乐). This unique festival is designed to increase knowledge and understanding of and participation (参与) in the many recreational activities available in Utah. This family-friendly event features live music, guest speakers, giveaways, creative children’s activities, and great food all day long.

Place: 3100 South 2900 East, Salt Lake City, UT 84109

Date: June 19, 2010

Time: Saturday 3:00 pm -10:00 pm

The Days of ‘47 KSL 5 Parade (游行)

The parade is one of the largest and oldest parades in the United States. Colorful floats, bands, horses and clowns thrill tens of thousands of people each year. Many parade-goers camp out on the streets the night before just to make sure of a great position to catch it all.

Place: 900 South 700 East, Salt Lake City, UT 84105

Date: July 24, 2010

Time: Saturday 9:00 am

Taylorsville Dayzz 2010

Experience Taylorsville Dayzz 2010, a celebration of the city’s birthday. Enjoy a 5K Family Run, Carnival, Food and Exhibit Booths and Fireworks. Listen to a live concert by Taylorsville Symphony and Utah Symphony, and a live performance of Jayson Hewlett (an American entertainer).

Place: 5100 South 2700 West, Salt Lake City, UT 84118

Dates: June 25-June 28, 2010

Time: Monday 8:00 pm, Friday 7:00 pm, Saturday 7:00 pm-10:00 pm

小题1:If you have to go to work in the afternoon, you can only take part in        .

A.Summerfest Arts Faire 2010

B.Venture Outdoors Festival

C.The Days of ‘47 KSL 5 Parade

D.Taylorsville Dayzz 2010小题2:A person who wants to watch fireworks can go to       .

A.50 North Main Street, Logan, UT 84321

B.3100 South 2900 East, Salt Lake City, UT 84109

C.900 South 700 East, Salt Lake City, UT 84105

D.5100 South 2700 West, Salt Lake City, UT 84118小题3:Which of the following time is proper for one to enjoy a live concert?

A.Monday 8:00 am.

B.Friday 6:00 pm.

C.Saturday 9:00 pm.

D.Sunday 10:00 pm.小题4:We can learn from the text that       .

A.The Days of ‘47 KSL 5 Parade attracts a large crowd

B.Summerfest Arts Faire 2010 is mainly intended for writers

C.people can take part in various matches at Taylorsville Dayzz 2010

D.Venture Outdoors Festival will become more and more popular