搜题请搜索小程序“爱下问搜题”
问题 选择题

适宜开展《探究不同植被对空气湿度的影响》的环境是

A．校园内

B．池塘周围

C．河流边

D．湖泊周围

答案

答案：A

题目分析：探究对空气湿度的影响，BCD三个选项都选择在水边进行，空气湿度本身就已经很大，不好控制实验条件，不符合题意。

改错题

四、短文改错（满分10分）

假如英语课上老师要求同学们交换修改作文，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：在缺词处加一个漏字符号（∧）, 并在其下面写上该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

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。

My parents and I went to the park on last Sunday. There were lots of visitors stood in front of the ticket window. We waited a long time and buy three tickets. In the Tiger Mountain of the park, I was too eager to see the fierce frightened animals that I quickened my steps through the crowd. Unfortunate, I got separated from my parents. I had hard time looking for him, but I had no luck. Wandering in the park, I felt alone without any companions. Worse still, I had no money, so I had to walk home, covered as much as 5 kilometers.      
查看答案
单项选择题

确诊葡萄胎最重要的辅助检查是（）。

A.血/尿HCG测定

B.B超检查

C.多普勒胎心听诊检查

D.腹部CT检查

E.腹部X线检查
查看答案