绞釉存在于釉质的（）
A.内1/3
B.内2/3
C.内1/4
D.外1/3
E.外2/3
参考答案：B
the goal of "Education for All", the Chinese government is making joint efforts. [ ]
A. To achieve
B. Achieving
C. Achieve
D. Having achieved
Rl2具有（），所以被禁用。
