断裂愈合重组模型有什么优点和不足？

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Many schools require yearly parent teacher conferences for all students. ___小题1:__.The list below is to help teachers prepare themselves for these often difficult conferences.

___小题2:__.When you have students who are struggling in either their academics or their behavior, you should communicate with their parents using notes or phone calls.

Come to the conference well-prepared. If the student is having a hard time with their work, show the parents their grades and samples of their work. ___小题3:___ .If the student is misbehaving, then you should make detailed notes of their behavior before the conference. Bring these notes to the conference so that parents can understand how their children are behaving.

____小题4:__. For example, you might say something about their creativity, their handwriting, their sense of humor, or make some other comment. Instead of restating the problems you’ve already discussed, end with a comment that offers hope for the future. You could say something like, “ Thanks for meeting with me today. I know that working together we can help Johnny succeed.”

Some teachers may have to deal with an angry parent at some point. ___小题5:__. Much anger can be avoided if the parents are informed. Don’t get excited yourself and make sure you avoid shouting.

Communicating with parents before a conference is necessary.

Try to think of something nice to say about the students that have problems.

At the end of the conference, you should make a conclusion.

A parent teacher conference can have a huge impact on a student’s work and behavior.

Remember to thank the parents for coming to the conference and working with you.

Remember that the best way to solve this is to keep parents informed every step of the way.

G. It is easier for parents to understand the problem if they can actually see examples of their children’s work.

某校物理兴趣小组决定举行遥控赛车比赛．比赛路径如图所示，赛车从起点A出发，沿水平直线轨道运动L后，由B点进入半径为R的光滑竖直圆轨道，离开竖直圆轨道后继续在平直轨道上运动到C点，并越过壕沟．已知赛车质量m=0.1kg，通电后以额定功率P=1.4W工作，水平轨道的摩擦阻力恒为0.20N．图中L=10.0m，BC=1.5m，R=0.32m，h=1.25m，S=1.5m．重力加速度g取10m/s²．求：

（1）赛车要越过壕沟，离开C点的速度至少多大？

（2）赛车要通过光滑竖直轨道，刚进入B点时的最小速度多大？赛车的电动机在AB段至少工作多长时间？

（3）要使赛车完成比赛，赛车离开光滑竖直轨道后，电动机在BC段是否还要继续工作？（要通过计算回答）

He had just reached home _____ a man called to see him.

A．while

B．after

C．until

D．when

手机邮箱目前的三种资费及相应的服务？

患者，男，45岁心烦不寐，眩晕耳鸣健忘，腰酸梦遗，舌红少津，脉细数其病变所在脏腑为（）

A.心

B.肾

C.肝

D.心、肾

E.肝、胃