若一个OFDM符号持续期为400us,则该OFDM子载波间隔应为( )。 A: 5KHz B: 4KHz C: 8KHz D: 2.5KHz
若一个OFDM符号持续期为400us,则该OFDM子载波间隔应为( )。 A: 5KHz B: 4KHz C: 8KHz D: 2.5KHz
某中外合资经营企业注册资本为400万美元，合同约定分两次投入，合同约定汇率US$...“实收资本”项目的金额为人民币( )万元
某中外合资经营企业注册资本为400万美元，合同约定分两次投入，合同约定汇率US$...“实收资本”项目的金额为人民币( )万元
9. In the first half of this year, the city of Yiwu saw over ______ million US dollars in trade volume. A: A. 400 B: B. 500 C: C. 800 D: D. 900
9. In the first half of this year, the city of Yiwu saw over ______ million US dollars in trade volume. A: A. 400 B: B. 500 C: C. 800 D: D. 900
Are there enough books for ____? A: three us B: us three C: all us D: the three us
Are there enough books for ____? A: three us B: us three C: all us D: the three us
______ agrees to your plan. A: Anyone of us B: No one of us C: None of us D: Someone of us
______ agrees to your plan. A: Anyone of us B: No one of us C: None of us D: Someone of us
Mr. Yang ______. A: teaches math us B: teaches us to math C: teaches math to us D: us teaches math
Mr. Yang ______. A: teaches math us B: teaches us to math C: teaches math to us D: us teaches math
What does sleeping help us? A: It helps us stay healthy. B: It helps us improve our memory. C: It helps us reduce stress. D: It helps us lose weight.
What does sleeping help us? A: It helps us stay healthy. B: It helps us improve our memory. C: It helps us reduce stress. D: It helps us lose weight.
Miss Li is ______ English teacher. She likes______ very much. A: our, we B: our, us C: us, our D: us, us
Miss Li is ______ English teacher. She likes______ very much. A: our, we B: our, us C: us, our D: us, us
The new washing-machine has been______. A: giving us trouble B: getting us trouble C: asking us trouble D: looking for us trouble
The new washing-machine has been______. A: giving us trouble B: getting us trouble C: asking us trouble D: looking for us trouble
【填空题】400÷4=() 400÷5=() 400÷8=()
【填空题】400÷4=() 400÷5=() 400÷8=()