题目内容：
The photoperiodic response of algae actually depends on the duration of darkness，but not on the response of light.
参考答案：
答案解析：
单选题：The photoperiodic response of algae actually depends on the
- 题目分类：2级
- 题目类型：单选题
- 查看权限：VIP
To reveal a military secret to the enemy is tantamount to tr
To reveal a military secret to the enemy is tantamount to treason．
However，beyond that dolorous picture，there is a revolution a
However，beyond that dolorous picture，there is a revolution at work in world agri
The young man dangled in midair, held by one frail rope.
The young man dangled in midair, held by one frail rope.
男性，57岁，高血压合并糖尿病，降压药不宜选用
男性，57岁，高血压合并糖尿病，降压药不宜选用
教室对于（ ）相当于战场对于（ ）
教室对于（ ）相当于战场对于（ ）