are, there, clocks, two, my, house, in (.)
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解不等式组 {x−3(x−2)≥42x−15<x+12 ,并将它的解集在数轴上表示出来.
A. spring B. farm the land
C. go on outings D. new green leaves
E. warmer and warmer F. fly kites
G. longer and longer H. four seasons
如图:若△ABE≌△ACF,且AB=5,AE=2,则EC的长为( )
按要求完成下列光路图