A:the most
B:more
C:worse
D:the least
地球上昼夜长短变化幅度最大的地区是( )
参考词汇:lecture 讲座;museum 博物馆
A plan for Winter Camp
We will have a winter camp from January 21 to January 24 in Guangzhou. Here is the plan for the four days.
鲫鱼是一种常见的淡水鱼类.关于“探究鲫鱼适应水中生活特征”的实验结论,正确的是( )