炒熟干果的包装主要应考虑()。
A、防潮
B、防虫蛀
C、防光照
D、防氧化
参考答案:A, B, C, D
After the fire , very little ___ in his house.
A.kept
B.remained
C.continued
D.left
举例说明知觉的因素是如何影响人的知觉的?