题目内容

They are talking _______.

A. face to face
B. on the phone
C. by E-mail

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They are talking about ________.

A. products
B. future cooperation
C. samples

They will meet up ______.

A. tomorrow
B. this week
C. next week

猪油比牛油的必需脂肪酸含量( )。

A. 高
B. 低
C. 相等

花生油、大豆油等植物性油脂的必需脂肪酸含量( )猪油、牛油等动物性脂肪。

A. 高于
B. 等于
C. 低于

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