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GPIOA.0接一开关,开关另一端接地,GPIO.1通过1k电阻接一LED,LED另一端接3.3V,要求开关闭合,灯亮,开关断开,灯灭。则硬件处理代码为: A. while(1){ if(GPIOA_ IDR &(1<<0)) GPIOA_ ODR |=(1<<1);else GPIOA_ ODR &=~(1<<1); } B. while(1){ if(GPIOA_ IDR &(1<<0)) GPIOA_ ODR &=~(1<<1);else GPIOA_ ODR |=(1<<1); } C. for(;;){ if(GPIOA_ IDR &(1<<0)) GPIOA->BSRR =1<<1;else GPIOA->BSRR =~(1<<1); } D. for(;;){ if(GPIOA_ IDR &(1<<0)) GPIOA->BSRR =1<<1;else GPIOA->BSRR =1<
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【简答题】用方框中动词的适当形式填空 pray spend cost worry head save treat pass agree afford 1. After the heart-to-heart Party was over, some students with flowers for all the singers and staff. 2. Some of the child...
【简答题】许多大气污染事件都与逆温现象有关,逆温可分为 ________ 、 ________ 、 ________ 。
【单选题】下列关于按摩注意事项用语，哪项是不正确的( )。
A.
A massage should not be performed within two hours after a meal
B.
Never begin to massage with cold hands
C.
Make sure the guest not to be cold
D.
The best time to massage is five minutes after a meal
【单选题】An Egyptian executive, after entertaining his Canadian guest, offered joint partnership in a business venture. The Canadian, delighted with the offer, suggested they meet again the next morning with t...
A.
the Egyptian interpreted inviting lawyers as a sign of the mistrust from the Canadian side
B.
the Egyptian executive expected a counteroffer from the Canadian guest
C.
it is difficult to find a good lawyer in Cairo in such a short time
D.
the Canadian should not have set up the next meeting time so soon
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【单选题】翻译题 7 Many people in the town of Downey don’t agree with this line of thinking, though.
A.
唐尼的许多人却不同意这种说法。
B.
不过，唐尼的许多人却不同意这种思维的线条。
C.
不过，唐尼的许多人却不同意这种说法。
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