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【单选题】
—Jane, I will graduate this June．What advice will you give me? —Suggest you go you are most needed and you'll benefit a lot from it．A.
in which
B.
to which
C.
where
D.
at which
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举一反三
【简答题】Students can be encouraged and trained to do corrections with _______ and marks, which is an implicit way of error-correction.
【简答题】大华公司拟采购材料一批，甲供应商的信用条件为（2/10, N/30），乙供应商的信用条件为（1/20, N/30）,其他条件完全相同， 要求： （1）计算大华公司对甲、乙供应商放弃现金折扣的成本。 （2）如果大华公司放弃现金折扣，应选择哪家供应商？ （3）如果大华公司选择享受折扣，应选择哪家供应商？ （4）如果同期银行短期借款利率为35%，大华公司是选择放弃现金折扣，还是享受折扣？
【单选题】As soon as he his error, Rockfeller made the necessary corrections to his data collected.
A.
discovered
B.
has discovered
C.
discovers
D.
had discovered
【简答题】二项分布的数学期望计算公式是
【单选题】As soon as he_____ his error, Rockfeller made the necessary corrections to his data collected.
A.
discovered
B.
has discovered
C.
had discovered
D.
was discovering
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