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【简答题】
已知全集U={x|x<10,x∈ },集合A={2,4,5,8},集合B={1,3,5,8},则 ∪ =________
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举一反三
【简答题】Annual renewal of academic merit scholarships depends on whether the recipients remain ______.
【简答题】亚非三大文化圈是指什么?
【单选题】Urban renewal programs strive to upgrade areas that are becoming slums.
A.
reproach
B.
improve
C.
fortify
D.
uproot
【单选题】The author implies that successful renewal of a waterfront area requires that ______.
A.
both public and private interests be considered
B.
designs like that of Moon Walk be used
C.
technological changes in transportation be made
D.
historical monuments be preserved