单选题：According to the fifth paragraph, under what conditions are

题目分类：理工类
题目类型：单选题
号外号外：注册会员即送体验阅读点！

题目内容：

According to the fifth paragraph, under what conditions are algae able to use solar energy to make hydrogen ? A．When there is a lot of oxygen in the air.
B．When there is no oxygen in the air.
C．When photosynthesis is taking place.
D．When enough starch is stored.

参考答案：【答案仅供学习，请勿对照自行用药等】

答案解析：

Scientists use the highest resolution microscope to watch an

Scientists use the highest resolution microscope to watch and record the image o

分类：理工类题型：单选题

回答(54)题

回答(54)题A．concentrating B．detecting C．selecting D．harnessing

分类：理工类题型：单选题

The British government doesn't seem__________

The British government doesn't seem__________A．to find jobs B．to do low-skill lo

分类：理工类题型：单选题

Not everybody has the competence to finish the task within t

Not everybody has the competence to finish the task within three days.A．chance B

分类：理工类题型：单选题

The author argues that shoppers

The author argues that shoppersA．exert more influence on stores than they imagin

分类：理工类题型：单选题