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【单选题】
According to Paragraph 5, if we find some evidence of religious aspects of ancient societies, ______.A.
the evidence can help us know the beliefs of past societies
B.
it will still be fairly difficult for us to understand the evidence
C.
we will be able to interpret the values and morals of early people
D.
we can explain beliefs with the help of some material objects
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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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