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【判断题】
Unix、Linux、Netware、Windows Server 系列是网络操作系统.A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】The boys often used to throw a stone or two at the glasshouse because ______.
A.
they hated Mr. Flowers
B.
they only wanted to play a joke on Mr. Flowers
C.
Mr. Flowers didn't let them watch flowers
D.
they were naughty
【简答题】简述老年人的饮食保健原则。
【简答题】LIO是指__________。
【简答题】简述我国老年保健的基本原则。
【简答题】简述老年人自我保健的原则？
【单选题】The Great Pyramid is made _____ of two million stones and each stone _____ more than two tons. [ ]
A.
from; weighs
B.
up; has
C.
from; has
D.
up; weighs
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