试题详情

【单选题】As we know, the earth ________ heat and light from the sun.

The earth ______ the necessary amount of heat and light from the sun.

The earth ___the necessary amount of heat and light from the sun（）

,and the stream of plasma coming from the Sun is called the solar wind. The more active the Sun,the

,and the stream of plasma coming from the Sun is called the solar wind. The more active the Sun,the