已知2x=8,则x= [ ]
A.2
B.﹣2
C.3
D.﹣3
答案:C
Though flu is a disease,it can cause death.
A.regular
B.normal
C.usual
D.common
“简编亏替”的意思是()
A.书简匮乏
B.书简编排不易
C.替代的书简
D.书简残缺不全
E.竹简缺少