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【多选题】
自然界的含水系统可以分为( )两大类 。A.
松散沉积物含水系统
B.
基岩含水系统
C.
裂隙含水系统
D.
岩溶含水系统
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举一反三
【单选题】下列代码运行结果是() lst=list('abcd') lst.append('a') lst
A.
['a', 'b', 'c', 'd']
B.
['a', 'a',, 'b', 'c', 'd']
C.
['a', 'b', 'c', 'd', 'a']
D.
[ 'b', 'c', 'd']
【单选题】以下代码的输出结果是 lst1 = [1, 2, 3, 4, 5] lst2 = ['a', 'b'] lst1.extend(lst2) lst1.insert(0,0) lst1.remove('a') lst1.reverse() print(lst1)
A.
['b', 'a', 5, 4, 3, 2, 1]
B.
[0, 1, 2, 3, 4, 5, 'a', 'b']
C.
[0, 1, 2, 3, 4, 5, 'b']
D.
['b', 5, 4, 3, 2, 1, 0]
【单选题】When the “free trial” deadline is over, you’ll be charged without notice for a product or service if ________.
A.
you happen to reveal your credit card number
B.
you fail to cancel it within the specified period
C.
you fail to apply for extension of the deadline
D.
you find the product or service unsatisfactory
【简答题】代码: >>> lst = [('a', 'c'), ('3', '8'), ('2', '1'), ('f', 'g'), ('12', '7')] >>> lst.sort() 执行后的lst为:A. [ ('2', '1'), ('3', '8'),('12', '7'),('a', 'c'), ('f', 'g')] B. [('12', '7'), ('2', '1'), ('3', '...
【单选题】When you arrive at the hotel, you’ll______ notice the friendly staff, who will make your holiday a wonderful dream.
A.
sensitively
B.
scarcely
C.
immediately
D.
obviously
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