在建筑工程一切险的免赔额中，施工机具设备等的免赔额为保险全额的( )。A．0.5%

AM、BN是平行板电容器两极板，板长为L，距离板右端L处有竖直屏PQ．若带电，两板之间为匀强电场，两板之外电场忽略不计．一质量为m，带电量为+q的油滴以水平速度V₀飞入电容器间，经过一段时间油滴垂直打在屏上．下列说法正确的是（　　）

A．平行板电容器可能不带电

B．BN板一定带正电，且电场强度大小为

C．油滴在电容器间运动过程中机械能一定增大

D．油滴撞击PQ前的瞬间速度大小仍为V₀

短文改错

     假定英语课上老师要求同学之间交换修改作文，请你修改你同桌写的以下作文。文

中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏词符号（/\），并在该句下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：

     1. 每处错误及其修改均仅限一词；

      2. 只允许修改10处，多者（从第11处起）不计分。

     Last Monday, we were having our Chinese class while the teacher suddenly slipped and fell.

We were both worried about her. One of the boys carry her on the back, with the help of some

others, to the clinic immediately. It turned out her right leg were broken and she had to stay in

the hospital. The followed day, we went to visit her with flowers and fruit. Seeing her lying in the

bed with her leg wrapped in bandages, we felt sorry to her and hoped that she will recover soon.

This Thursday she returned to the class on a wheelchair to give us lessons. We were all deep

moved and proud of having such a responsible teacher.

_______________________________________________________________________

　　在进行语文探究性学习过程中，金杰同学畏惧内容太难，中途产生了放弃的念头。甲、乙两位同学作为他的好朋友，分别去鼓励他。请你按规定的语境，写出甲、乙两位同学鼓励金杰同学的话语。     

（1）甲同学幽默地说：学习好比_____________________________________________。

（2）乙同学含蓄地说：学习好比_____________________________________________。

对于北部湾国际旅游度假区的开发，需从邮轮、游艇、休闲、运动、科考、探险、海钓等滨海、近海、远洋高端旅游产品入手。（）

什么时候葡萄栽培传到南非，澳大利亚，新西兰等国？