饭店对营销渠道宽度的选择可考虑的方案有（）
A.集中性营销
B.密集型营销
C.选择型营销
D.专营性营销
参考答案：B, C, D
-----Where are my model planes, mom?
-----Sorry, I don’t know. Oh, look, they are _________.
A in the sofa B on the room C under the bed D at here
