一同过专四吧！(10) 1.We mustn't relax our vigilance___. A in the least B at least C at most D in the end 2. During the reading lesson, the teacher asked the students to read a few __ from the... / 2010-06-08 / 查看 1 次

笑比哭好知多少 Why do we laugh? The reasons we laugh, including "contagious" laughter, may be products of evolution. Natural laughter is a two-part, spontaneous, response to humor, that has p... / 2010-06-08 / 查看 959 次

5.8短语动词-动词 5.8短语动词 动词加小品组成的起动词感化的短语叫短语动词。例如： Turn off the radio.把收音构造上。（turn off是短语动词） 短语动词的组成根基有下列几种： 1）动词+副词，如... / 2010-06-08 / 查看 5 次