【单选题】下列代码运行结果是() lst=list('abcd') lst.append('a') lst
B.
['a', 'a',, 'b', 'c', 'd']
C.
['a', 'b', 'c', 'd', 'a']
【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 you arrive at the hotel, you’ll______ notice the friendly staff, who will make your holiday a wonderful dream.
【单选题】When the 'free trial' deadline is over, you'll be charged without notice for a product or service if______.
A.
you fail to cancel it within the specified period.
B.
you happen to reveal your credit card number.
C.
you find the product or service unsatisfactory.
D.
you fail to apply for extension of the deadline.