young people today are taking a more active part in online activities

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• 英语完形填空 Today young people are taking a more active part in online activ
• Today’s young people are taking a more active part in online activities.Although the Internet can
• 英语完形填空 Today young people are taking a more active part in online activ完形填空Today young people are taking a more active part in online activities .Although the Internet can be (1) for students to collect information and communicate with their friends ,teachers and parents are becoming more and more (2) about the unhealthy web content (内容) .They think that setting up “ Harm-free (无害的) Internet Bars “ is an important step to protect (3)It was Sunday afte
• young people today are taking a more active part in online activities
• Today’s young people are taking a more active part in online activities.Although the Internet can
• young people today are taking a more active part in online activities
• 若a=21−(−1)m（m为正整数），且a、b互为相反数，b、c互为倒数，则ab+bm-（b-c）2m的值为（　　） A.0 B.-1 C.-2 D.0或-2
• 若a=21−(−1)m（m为正整数），且a、b互为相反数，b、c互为倒数，则ab+bm-（b-c）2m的值为（　　） A.0 B.-1 C.-2 D.0或-2