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学习是__________过程,需要克服困难,刻苦努力。 [ ]
1年前
小星家电能表月初的示数如图所示,如果他家一个月用了120度电,则月末电能表的示数应为______,他家本月应交电费._______元(当地电费价格为0.5元/kW.h)
1年前
I wonder how many ______ (手术) ORBIS doctors perform during their visit to a poor country.
1年前
A group of adults, highly succeeded in their jobs, went to visit their old professor.
1年前
在梯形ABCD中,AD∥BC,AB=DC=AD,∠C=60°,AE⊥BD于点E,AE=1.求梯形ABCD的面积.
1年前