皮皮学，免费搜题
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【单选题】
人体内含量最多的金属元素为A.
钠
B.
钾
C.
钙
D.
镁
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】What is true about Carlson Furniture?
A.
It is a family-owned business.
B.
It has been in business for 45 years.
C.
It is the largest furniture dealer in Chicago.
D.
It has recently been bought by another company.
【简答题】A website following B2B business model sells its product directly to a customer.()
【简答题】目前负责管理全世界IP地址的单位是( )(字母全大写)。
【单选题】The five general electronic commerce categories are business-to-consumer, business-to-business, business processes, consurler-to- (71) ,and business-to-government.
A.
consumer
B.
govern nent
C.
business
D.
customers
【简答题】B2B business to business
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