在()阶段中,干燥速率的大小主要取决于物料本身的结构,形状和尺寸,而与外部的干燥条件关系不大。
A、预热
B、恒速干燥
C、降速干燥
D、以上都不是
参考答案:C
—What about going abroad for further study?
—Great, but I never expect ______ a chance for me before.
A.there to be
B.there being
C.there is
D.there to have