题干
选出你所听到的句子（ ）
A：The dog is playing under the table．
B：The cat is playing under the table．
答案(点此获取答案解析）
A
选出你所听到的句子（ ）
A：The dog is playing under the table．
B：The cat is playing under the table．
（i是虚数单位）的虚部为 （ ）