gexunxun
幼苗
共回答了19个问题采纳率:94.7% 举报
In order to release the shortage of food supplies, and plant rice in places shorting of water, we should first cultivate new type of rice which has anti-thirsty DNA, then cultivate the improved soil to cooperate with this kind of rice, thus we can grow rice even if the coil is not fertile.
1年前
7