旅客若误机可要求退票，但需支付相当于票价(　　)的误机费。A．3_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

旅客若误机可要求退票，但需支付相当于票价(　　)的误机费。

A．30%

B．40%

C．50%

D．60%

答案

参考答案：C

选择题

The teachers should make sure that the students each a textbook.

A. has
B. have
C. is having
D. are having

单项选择题

An（）statement can perform a calculation and store the result in a variable so that it can be used later.

A．executable

B．input

C．output

D．assignment