A:①②③④⑥
B:①③④⑥⑦
C:①③④⑤⑥
D:①③⑥⑦
下表是探究绿豆种子萌发所需外界条件的实验设计,如果还要探究绿豆种子萌发是否需要光,还需设置5号瓶,对5号瓶的处理是( )
1号瓶
2号瓶
3号瓶
4号瓶
处理方式
洒入少量清水,使餐巾纸湿润,然后拧紧瓶盖
不洒水,拧紧瓶盖
倒入较多清水,使种子淹没,然后拧紧瓶盖
放置环境
25℃、有光
4℃、有光
实验结果
种子萌发
种子不萌发
用所给词的适当形式填空
(1)What about ____ (eat) some fish for supper?
(2)Sam is an ____ (England) boy.
(3)He can finish ____ (read) the book this week.
(4)What ____ he often ____ (do) after school?
(5)This is my cat. Do you know ____ (it) name?
He exercises in the park every day.He wants to be .