— Hello, Jack. How are you doing?— A. Reading a magazine B. I’m OK C. It’s nice.
---What’s your ________?--- It’s 13958176532.
---How are you?-- I ________ fine.
---What’s this? ---It’s ________.
“ 千克” 的缩写形式是________.
下列字母的发音中含有元音因素 的是________.