胃大部切除毕Ⅱ式吻合术后第2天，突然出现右上腹剧痛。查体：右上腹压痛、反跳痛、肌紧张

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加: 在缺词处加一个漏词符号(∧),并在其下面写出该加的词。

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。

My father and I stayed at the South Lake Hotel for a week when we visit Beijing

last month. It is in the downtown area, but it is easy to go to anywhere from the hotel by public transport. We lived in a comfortably double-room with a big bath. What I liked best were the free high-speed Internet connection in the room. I checked my email messages every day. I also shared for my friends many photos taking in Beijing. The food was wonderful with reasonable prices, and we enjoyed several local dish. It is such great hotel that I would recommend it to any friend of me who is going to Beijing.

运转中的电机应检查哪些项目？

审核的要求是审核过程应具有（）。

A．适宜性

B．独立性

C．系统性

D．文件化

E．高效性

两个小样本比较的假设检验，应首先考虑（）。

A.t检验

B.秩和检验

C.任选一种检验方法

D.资料符合哪种检验的条件

UPS失电时有什么现象？