甲组
乙组
环境条件
阴暗、低温
光照充足、适宜温度
实验材料
同样多株韭苗
处理方法
将甲、乙两组植物栽种在各自环境中一段时间
下列各项中,没有语病的一项是( )
关于史实和传说,下列说法正确的是( )
— ______ people travel every year?
— Perhaps when we are talking about it, more than 100 planes have taken off around the world.
wǔ rǔ
qiáng shèng
sā huǎng
____
guī jǔ
péi bù shì
qiáng dáo
yàn zǐ
huái nán
ān jū lè yè