种了105棵树,活了100棵,成活率是( ) A.100% B.约95.2% C.105%
问题描述:
种了105棵树,活了100棵,成活率是( )
A. 100%
B. 约95.2%
C. 105%
答
×100%≈95.2%;100 105
答:成活率约是95.2%,
故选:B.