配料后的混合料必须经过（）处理才能达到烧结的要求。
参考答案：混匀制粒
In a room above the store, where a party_______ , some workers were busily setting the table.
A．was to be held
B．has been held
C．will be held
D．is being held.
俯卧位平衡反应形成的时间（）
A.6个月
B.7～8个月
C.8～9个月
D.10个月
E.12～21个月
