单项选择题

Advanced technologies can do all of the following EXCEPT that ______.

A．they can find oil deeper in the ground
B．they can increase mining efficiency
C．they can cultivate microorganisms that produce oil
D．they can delay peak oil production

<上一题目录下一题>

热门试题

单项选择题

According to Paragraph 3, a trip back to the teacher's home at night often ended ______.

A．at the entrance to the teacher's house
B．halfway between the school and the teacher's house
C．at the gate of the students' houses
D．where it was half an hour's walk from the school

单项选择题

The author wrote this article to ______.

A．commemorate his teacher
B．recommend this teacher
C．recall his school days
D．describe his school life