We all know that reading good books helps to_________our speech.
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I'm very much worried about my son's lack of__________in English.
They are laying heavy stress on the training and selection of__________ people.
下列有关Python语言的说法,错误的是()。
A. 可以用
B. 实现行注释
C. 可以用'''实现块注释
D. Python代码书写格式严格
E. 不能使用tab键进行缩进
Python3.x的保留字个数是()。
A. 27
B. 29
C. 33
D. 37