皮皮学，免费搜题
登录
搜题
【判断题】
完全竟争市场的产品同质假定意味着厂商生产的产品中,商标、专利、品牌等的差异都是不存在的。( )A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】爸爸今年35岁了，爸爸比妈妈大5岁，妈妈多大岁数？
【单选题】'Be his fellow-worker and accomplice' in Paragraph 1 means to ______.
A.
try to help him if the author of a book commits a crime
B.
try to make the reader himself in the position of the author
C.
try to learn the author's writing skills and the other skills
D.
do best to be the author's friend and follow his model