用滴管将1毫升水滴在手心上,大约有( )滴.
A:5
B:15
C:50
①EG=DF;②∠AEH+∠ADH=180°;③△EHF≌△DHC;④若 AEAB=23 ,则3S△EDH=13S△DHC,其中结论正确的有( )
判断对错
0.7˙0˙ 是纯循环小数,保留两位小数是0.71
— Yes. He never praised him ________ he became one of the top students in his grade.