磁脉冲测速装置用以表示转速大小和转向的信号分别是()。
A.脉冲幅值和极性
B.脉冲幅值和相位
C.脉冲频率和相位
D.脉冲频率和极性
参考答案:C
My wife and I went to a supermarket, there we bought some cold drinks and cakes. After we came out of the supermarket, we noticed that in the front of the supermarket was a nice little garden with benches for people relax on. We sat there and started enjoying the things we have just bought. There was ten small cakes in the bag and we couldn’t eat all of it. I wanted to share, but of whom? A young boy appeared. He was looking into the trashcan for nothing to eat. We had just finished three of the ten cakes. So, I took the remained pieces and gave them to him. He thanked me and ran away in a happily mood.
实热内盛,或外感病邪热亢盛时的脉象是()
A.数脉
B.疾脉
C.虚脉
D.弱脉
E.实脉