设a为f的3阶零点,为g的5阶零点,则a为f/g的2阶极点。
查看答案
(1)How many pieces of luggage do you have?您有多少件行李?
A. 对
B. 错
(2)Let me help you with your luggage.让我帮您提行李。
A. 对
B. 错
(3)Is this everything, sir?这些就是所有东西吗?
A. 对
B. 错
(4)The Reception Desk is straight ahead. After you, please.前台就在前面,您先请。
A. 对
B. 错