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【单选题】
必需脂肪酸指的是( )。A.
n-6系脂肪酸
B.
单不饱和脂肪酸
C.
n-3系脂肪酸
D.
饱和脂肪酸
E.
人体不可缺少而体内又不能合成的脂肪酸
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【简答题】One day an old woman was traveling alone in the mountains. Suddenly she saw something shining（发光） in the stream. When she came close, she found it was a precious（宝贵） stone. She put the stone into her ...
【单选题】She suddenly saw him standing in the crowed, his eyes______ her like they had in school.
A.
stared at
B.
staring at
C.
being stared at
D.
to stare at
【单选题】陈小朗第四节旅游组织与旅游标识6.将每年的5月19日定为中国旅游日是因为著名地理学家,旅行家徐霞客()。
A.
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B.
出生于这一天
C.
所著《徐霞客游记》完成于这一天
D.
出外旅行开始于这一天
【简答题】阅读理解。 One day an old woman was traveling alone in the mountains. Suddenly she saw something shining in the stream. When she came close, she found it was a precious stone. She put the stone into her ba...
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