根据百分数的意义,这里是把99粒种子看做单位“1”,
所以发芽率是100%.
故选:C.
商场中封闭楼梯间地面应采用()级装修材料。(易)
A、A级
B、B1级
C、B2级
D、B3级
I will wait for ______ weeks. [ ]
A. two more
B. more two
C. many two
D. two many