医师根据辨证论治，临时拟定的处方，称为A．时方 B．协定处方 C．验方 D．秘方 E

定期检测低压配电线路和设备三相负荷，有无（）现象，及时加以调整。

A.过负荷及三相不平衡

B.增加负载

C.负荷降低

D.负荷过低

A

Hello,everyone. Because of the high rate of school violence(力)in some areas, teenagers’ safety becomes a serious problem. We are planning to set up an organization named School Watch to make sure that students have a safe school environment. Please be part of our plan!
What is School Watch
School Watch is a volunteer project in our school. It helps us stop violence and improve the quality of school life. It will keep yourself and your schoolmates safe. The other members of School Watch care for you and your classroom and you do the same for them.
Is it for everyone
Anybody can become a member of School Watch because everyone has something to offer.
What else can it do
School Watch makes it possible for us not only to help each other But also to make friends with each other. Some members may offer to help schoolmates who have problems with their homework.
Who is the Best School Watcher
Our school will look for the Best School Watcher and give him or her lots of prizes. You could be the one !
How do you start
To be part of this plan, the only thing you need to do is to talk to the director of the plan in your grade. If you want to get more information, check the official website at www.schoolwatch.com.

If you want to be a member of School Watch, you should ______.

A．check the website

B．be good at your schoolwork

C．talk to the director of the plan in your grade

D．pay for much money

风电机年利用时间高于（）小时才有“开发价值”；年利用时间高于（）小时有“良好开发价值”；年利用时间高于（）小时为“优秀风电场”。

对于在合同中规定了买方有权退货条款的销售，如无法合理确定退货的可能性，则 符合商品销售收入确认条件的时点是（） 。

A．发出商品时

B．收到货款时

C．签订合同时

D．买方正式接受商品或退货期满时

热电偶具有如下性质：当两电极材料相同时，（），回路热电势均为零，因此必须用两种不同材料构成热电偶。

A.只要接点温度相同

B.只要接点温度不同

C.只要接点温差不够大

D.不论接点温度相同与否