- 搜标题
- 搜题干
- 搜选项
单项选择题
_____ orders of 1000 pieces or more we _____ a special discount of 4%.
A.
_____ orders of 1000 pieces or more we _____ a special discount of 4%.
A.
On, grant
B.
To, allow
C.
Of, offer
D.
At, make
，上限频率为
，输入信号是由100kHz和2MHz两种频率分量组成的波形，则输出信号波形有频率失真。
