I think science is than Japanese.
A:much important
B:important
C:much more important
D:more much important
将1mol乙醇(其中的氧用18O标记)在浓硫酸存在条件下与足量乙酸充分反应.下列叙述不正确的是( )
按岩石的成因,石灰岩属于沉积岩,片麻岩属于变质岩( ).(判断对错)