It is an irrevocable letter of credit whic
题型：单项选择题
问题：
It is an irrevocable letter of credit which can not ( ).
A．change
B．be changed
C．changing
D．changed
题型：单项选择题
| 根据图片选择正确的句子。 | |
( ) 1 | A. Beijing is the capital of China. B. New York is a big city in America. |
( ) 2． | A. She is from England. B. She is from America. |
( ) 3． | A. It can speak English. B. It can speak Chinese. |