填空题

The Greenhouse Effect is generally believed to come from the ______in the atmosphere.

【参考答案】

buildup of carbon dioxide gas
<上一题 目录 下一题>
热门 试题

单项选择题
A．She’s going away for a while.B．She did well on the test.C．She worked hard and earned a lot of money.D．She didn’t have to work hard for the exam.
A．She’s going away for a while.
B．She did well on the test.
C．She worked hard and earned a lot of money.
D．She didn’t have to work hard for the exam.
填空题
In the United States, people usually spend about 80-90% of our time inside buildings.
相关试题