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It has been raining for three days.I hope________. [ ]
1年前
For many years, no one could communicate with people who had been born without hearing.
1年前
如图,给出下列条件,①∠1=∠3;②∠2=∠4;③∠B=∠DCE;④∠D=∠DCE.其中能推出AD∥BC的条件为 ( )
1年前
1969年7月20日,两名美国宇航员首次登上月球.我国已有( )( )和( )三名宇航员登上了太空.
1年前
It’s difficult for the farmers to provide with themselves
1年前