干燥时物料呈沸腾状、适用于湿颗粒干燥的是（）
A.喷雾干燥
B.红外线干燥
C.减压干燥
D.沸腾干燥
E.鼓式干燥
参考答案：D
氮肥的作用是（ ）
A．枝繁叶茂
B．硕果累累
C．茎杆健壮
D．繁花似锦
The dress fits me well, _____ I don't want to buy it because it's too expensive. [ ]
A. so
B. and
C. or
D. but
