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【简答题】
什么是向下延伸策略,简述其优、缺点。
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皮皮学刷刷变学霸
举一反三
【简答题】如何删除PPT最近使用过的演示文稿的标题
【简答题】功率小，泄露率低，密封性能可靠，使用寿命长而被广泛应用于各个技术领域的轴封形式是（）
【单选题】Call me as soon as your plane____________(land).
A.
land
B.
will land
C.
is going to land.
D.
lands
【简答题】在PPT中选择多个演示文稿同时打开，怎么设置？
【单选题】The peasants in India call for a reform. on land ownership because ______.
A.
they do not have enough fields to support their families
B.
their interests are severely infringed by the fast expansion of urban areas
C.
their rights to own a piece of land have been taken by the government
D.
they are losing land without getting any money from the government
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