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甲、个班级参加植树活动,按计划甲、个班级各植一定量的树木,由于两个班级人数不同,故所植树棵数之比为4:5,实际种数结果,甲班比计划多种植了20%,比计划多种植了15%,两个班级一共种树211棵,、个班级实际种树多少棵?
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【单选题】Every possible means _____ to work out the problem, but it is too difficult for us.
A.
is used
B.
are used
C.
has been used
D.
have been used
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【简答题】We all need a healthy environment, but we produce waste every day and it does harm to our environment. Though we are young, we can still do something to help. In fact, even the st everyday activ...
【简答题】苏教版四年级下册数学课课练第一章单元练习答案
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