某些药品可以明显增加运动员的兴奋程度。下列药品中属于国际奥委_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

某些药品可以明显增加运动员的兴奋程度。下列药品中属于国际奥委会严格禁止使用的兴奋剂的是( )。

A．碳酸镁

B．青霉素

C．阿司匹林

D．麻黄碱

答案

答案：D

麻黄碱能松弛支气管平滑肌、收缩血管，有显著的中枢兴奋作用，属于兴奋剂，所以答案选D。

完形填空

请阅读关于世界读书日的活动介绍，根据所提供的信息，完成下列表格，把答案写在答题卡指定的位置上。

We always look forward to World Book Day-it’s a chance to share our love of books and reading with even more people! Here are some of the activities in different countries and places to celebrate the World Book Day, April 23^rd every year.

School Children’s Books
School Children’s Books are happy that best-selling writer Holly Webb is their World Book Day writer for 2012. Holly has written a large number of books for chldren and she has written a special Magic Molly story just for this years World Book Day!

Reading Package
On the World Book Day, every primary school student in Britain will receive a package from their school. Inside, there is a story book, a beautiful card and a reading list. Besides these three things, there will also receive a special note, which is worth one pound. Children can use it to buy their favorite books. And they can also enjoy a special price---20% cheaper.

Share of Reading
It is an interesting on-line activity which is for one week. People can share their opinions of a book on line. There are also many reading-aloud activities in libraries. For example, in 2010’s World bookd Day, U.S. first lady Michelle Obama read aloud a book called The Cat in The Hat for More than 200 children in a library.

Information Card

What’s the date of the World Book Day	小题1:
Who is the World Book Day writer of School Children’s Books	小题2:
How many things do primary school students in Britain receive on the World Book Day	小题3:
What can people do in the activity of Share of Reading	小题4:
Which book did Michelle Obama read aloud to children on the 2010 World Book Day	小题5:

单项选择题

抗冻等级是指混凝~28d龄期试件在吸水饱和后所能承受的最大动融循环次数，其前提条件是（）。

A．抗压强度下降不超过5%，质量损失不超过25%

B．抗压强度下降不超过10%，质量损失不超过20%

C．抗压强度下降不超过20%，质量损失不超过10%

D．抗压强度下降不超过25%，质量损失不超过5%