请将下列英语单词按照音节的个数分成单音节词,双音节词,三音节词,四音节词,五音节词,并填到下面各个栏里:tube, bite,picture,content,blackboard, offend, begin, prepare, repair, exercise, abacus, passion, revision,today, excess, around, towards, accommodation, accidentally
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请从以下单词中选出闭音节的单词,写到下方答题栏中black,bat, frog, bee, make, best, bar, fly,line, fin, finger, bog,an, egg
以下选项中可访问字符串s从右侧向左第三个字符的是( )
A. s[3]
B. s[:-3]
C. s[-3]
D. s[0:-3]
下面代码的输出结果是>>> hex(255)
A. '0eff
B. '0off
C. '0xff'
D. '0bff'
面代码的输出结果是( )>>> oct(–255)
A. '0d–377'
B. '0o–377'
C. '–0d377'
D. '–0o377'