一个养殖场鸡和猪的总数是330,共1160条腿,鸡和猪各为()只。
A.260,70
B.270,60
C.250,80
D.80,250
参考答案:D
解析:
--- Where is Mary?
--- She ____ to Harbin.
A.has been
B.has gone
C.had been
D.goes
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