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【简答题】
How did the author answer the question "Are you poor?" He said, "I have ___________ some people, but ____________ others."
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反馈参考答案：
举一反三
【单选题】Arrows in the flowchart is used for the purpose of ______.( )
A.
to decide the order of steps
B.
for decision making
C.
compare the values
D.
Input and output
【简答题】进行并、差、交集合运算的两个关系必须具有相同的______，即元组结构相同。
【单选题】In the balance of payments, the statistical discrepancy is used to:
A.
ensure that the sum of all debits matches the sum of all credits.
B.
ensure that the value of imports equals the value of exports.
C.
show how a balance-of-payments deficit is funde
D.
obtain an accurate account of a balance-of-payments surplus.
【简答题】进行并、差、交集合运算的两个关系必须具有相同的______，即元组的结构相同。
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