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The new cut in interest rate ____? promote domestic investment.
A. means to
B. directs toward
C. is meant to
D. leads to
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We must ________ our attention on the question of reducing our cost.
A.payB.focusC.absorbD.promote
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The people in that remote area still live on humble means because the economy there is underdeveloped.A:difficult
B:modest
C:arduous
D:domestic
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6、对于下述命令,如何利用pipe符号进行改写: by_cut <- group_by(diamonds, cut) count_cuts <- mutate(by_cut, N = n())A.count_cuts <- diamonds %>% group_by(cut) %>% mutate(N = n())B.count_cuts <- diamonds %>% mutate(N = n()) %>% group_by(cut)C.count_cuts <- diamonds %<% group_by(cut) %<% mutate(N = n())D.count_cuts <- diamonds %<% mutate(N = n()) %<% group_by(cut)
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写出下面代码的运行结果。def addInterest(balance,rate): newBalance=balance*(1+rate) balance=newBalance def main(): amount=1000 rate=0.05 addInterest(amount,rate) print (amount) main()
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