A. 对 B. 错
A. Bill Gates is 60 years old Bill Gates is age years old C. Bill Gates is array(“Bill”=>”60”) years old
A. B. 去掉字符串两段 C. 去掉字符串两段 D. 去掉字符串两段
A. 0 B. 1 C. -1 D. 7