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They want to know ____ do to help the suffering people in the earth-stricken area. [ ]
1年前
Hi, Jim. I phoned you at 5 o'clock yesterday afternoon. But nobody answered. 小题1: ?
1年前
He shows all the personal ________ (素质) necessary to be a successful salesman.
1年前
. 如果你是店主,你应怎样招呼客人: A . Can I help you? B . Thank you.
1年前
已知数列{an}的通项公式为an=n+1/2的(n+1)次方,求数列前n项和sn
1年前