999 查看正确答案
Which of the following shows that a person is NOT dreaming in his sleep?
777 查看正确答案
Which of the following is the best title of the article?
601 查看正确答案
A . combine
B . complain
C . comprise
D . complex
230 查看正确答案
A . procession
B . professor
C . mission
D . pressure
555 查看正确答案
The reason why all the solar energy falling on the earth can’t be utilized is that ______．