上海市部分区2021届高考英语二模试题分类汇编：六选四专题 Word版含答案

Kite power has the potential to greatly improve on current wind-power strategies. C.

Wind at these altitudes (海拔高度) is stronger and steadier which increases productivity factors of the system to about 60%. D.

Its plan is to build a kite power station using technology that can collectively generate (产生) large amounts of energy. E.

Nevertheless, they successfully demonstrated that their kites could operate automatically at an altitude of up to 700 meters. F.

After the initial cost of designing and setting up the plant, little additional investment will be necessary, apart from standard

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