如果单片机使用12MHz的晶振，要让定时器1使用方式2实现250us的定时，那么计数初值应该为（） A: 06 B: 3192 C: 250 D: 256
如果单片机使用12MHz的晶振，要让定时器1使用方式2实现250us的定时，那么计数初值应该为（） A: 06 B: 3192 C: 250 D: 256
一个同步帧的时间为 ( ) A: 125us B: 250us C: 375us D: 500us
一个同步帧的时间为 ( ) A: 125us B: 250us C: 375us D: 500us
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
The teacher told us that Tom us for America．
The teacher told us that Tom us for America．
Any delay in the shipment would ______. A: cause us in inconvenience B: involve us in much inconvenience C: involves us in convenience D: involve us inconvenience
Any delay in the shipment would ______. A: cause us in inconvenience B: involve us in much inconvenience C: involves us in convenience D: involve us inconvenience