The photoperiodic response of algae actually depends on the duration o-考呗网

单选题The photoperiodic response of algae actually depends on the duration of darkness，but not on the response of light.

[分析]结构应用
本句意为：海藻的光周期反应事实上依黑暗的持续时间而定，而不是靠光的反应。英语中表示并列用and，抽象名词和物质名词前不加冠词；因此C为答案。

1The early railroads were connected short lines in the existing arteries of transportation: roads，turnpikes，canals，and other waterways．

2The computer has dramatically affected just like photographic lenses are constructed．

3Some women can make a good salary in a job instead of staying at home, but they decided not to work for the sake of the family.