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【简答题】
已知 且 ，求函数 的最大值和最小值．
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反馈参考答案：
举一反三
【简答题】正式命名之前有乳名,又叫______________。
【单选题】I read very slowly. I can't spell some English words, _______. [ ]
A.
too
B.
also
C.
but
D.
either
【单选题】The English in the future will be quite different from the English of today. It is possible that some English words may even completely.
A.
die down
B.
die out
C.
die off
D.
die of
【简答题】常见的毛坯种类有哪些？选择毛坯时应考虑哪些因素？
【单选题】Who can _______the blackboard? Next I must write some English words on it. [ ]
A.
write
B.
clean
C.
wash
D.
make
【简答题】机械加工中常见的毛坯种类有哪些?毛坯选择的原则是什么?
【简答题】轴类零件常见的毛坯种类有哪些？分别适用于什么场合？
【单选题】I read very slowly. I can't spell some English words, _____. [ ]
A.
also
B.
either
C.
but
D.
too
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