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1.We mustnt 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 novel. A pieces B essays C fragments D extracts 3. But they aslo __ beyond the individual places and consider the earth as a whole. A pass B reach C go D set 4. How human beings and their environment act __ each other. A upon B for C as D to 5. The mere fact __ most people believe nuclear war would be madness does not mean that it will not occur. A what B which C that D why 答案： 1-5 ADCAC 1．选A ①in the least 丝毫，一点They dont in least understand this. ②in the end 最后，终于 In the end they reached their destination before dusk. ③at least至少 ④at most至多 2．选D ①extract 做节录，引文，选段 | 
