填空题

When the chlorophyll is decreasing, ______are the most important weather conditions affect the color displays of leaves.

【参考答案】

temperature and moisture
<上一题 目录 下一题>
热门 试题

填空题
The increasing length of night is the most stable factor among all the environmental influences on leaves change.
填空题
The precondition of the appearance of anthocyanins is there is sugar in the leaf cells.
相关试题