皮皮学，免费搜题
登录
搜题
【单选题】
如果一种物品的需求收入弹性是负的，它必定是一种（）。A.
奢侈品
B.
正常物品
C.
低档物品
D.
富有弹性的物品
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【多选题】关于环层小体以下哪项正确
A.
分布于皮肤真皮乳头内
B.
感受压觉和振动觉
C.
圆形,与触觉小体大小相似
D.
有髓神经纤维末梢失去髓鞘穿行于中央
E.
薄层结缔组织组成被囊
【判断题】Questions 4 to 6 are based on the following passage. The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music p...
A.
正确
B.
错误
【简答题】The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music player. The first Walkman devices used magnetic audio ...
【判断题】The audio players of today have their roots in the Sony Walkman brand. Aside from radio devices, Sony was the first to introduce a portable music player. The first Walkman devices used magnetic audio ...
A.
正确
B.
错误
相关题目：
参考解析：
知识点：
题目纠错 0
发布
