Many people enjoy _______ a walk after dinner. A. take B. took C. to take D. taking
A.
take
B.
took
C.
to take
D.
taking
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【简答题】下面代码的功能是,随机生成50个介于[1,20]之间的整数,然后统计每个整数出现频率。请把缺少的代码补全。 import random x = [random.__(1,20) for i in range(_)] r = dict() for i in x: r[i] = r.get(i, _)+1 for k, v in r.items(): print(k, v)
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