能长期或永久保存血清的温度条件是（） A.4℃ B.-10℃ C.-20℃ D.-4

用所给词的适当形式填空（共15小题；每小题1分，满分15分）

小题1:At present, we Chinese people are enjoying a ________________ life. (comfort)

小题2:First ,we had fun ________________ after the parade of Disney characters.(run)

小题3:Everybody felt excited when they enjoyed the ________________ beauty. (nature)

小题4:I  ________________ from him since he lived in Shanghai. (not hear)

小题5:We should read something ________________. It’s useful to us. (amaze)

小题6:Do you know how long your parents  ________________? ( marry )

小题7:Tom was very sorry for his being late again, but the teacher’s smile made him ________________ better. ( feel )

小题8:Tomorrow is his mum’s ________________ birthday, she wants to buy some flowers. ( four )

小题9:Hearing the news, I jumped with________________ (excite).

小题10:Suzhou  ________________ a lot over the past few years. (change)

小题11:Listening to a talk is ________________. We all feel bored. (please)

小题12:Have you enjoyed  ________________ during the visit to Disneyland ? Yes, we had a fantastic time. (you)

小题13:At the end of the day we watched the  ______________ in front of Sleeping Beauty castle.(firework)

小题14:Shall we invite Andy ________________ for a picnic?(go)

小题15:All the students in the class except the sick boy __________ to plant trees, the classroom is quiet. ( go )

毒麻中药的使用注意事项

《教育信息化十年规划纲要》中“三通两平台”，三通是指哪三通（）。

A.宽带网络校校通

B.优质资源班班通

C.网络学习空间人人通

D.信息技术个个通

E.信息能力处处通

一个关系数据库文件中的各条记录______。

A．前后顺序不能任意颠倒，一定要按照输入的顺序排列

B．前后顺序可以任意颠倒，不影响库中的数据关系

C．前后顺序可以任意颠倒，但排列顺序不同，统计处理的结果就可能不同

D．前后顺序不能任意颠倒，一定要按照关键字段值的顺序排列

引入一套IT服务预算和核算体系，下面哪一项是最直接的好处？（）

A.更好的财务价值

B.更明确的计费方针

C.更好的财务预测

D.更高质量的支持服务