A:(0,0)
B:(1,0)
C:(﹣2,﹣1)
D:(2,0)
Police are now searching for a woman who is reported to ______ since the flood hit the area last Friday .
可用来鉴别己烯、甲苯、乙酸乙酯、苯酚溶液的一组试剂是( )
读诗《游山西村》判断下列说法的正误。
“丰年留客足鸡豚”的“足”写出了农家待客的热情。