某升压变压器连接10kV和220kV系统,则其变比为()。
A.10/220
B.10.5/220
C.10/242
D.242/10.5
参考答案:D
根据首字母提示,写出短文中所缺单词。
Hello, everyone. Welcome to our fashion show. We are having the show b __1__ we want to raise
money for Project Hope. Today we are going to show you clothes from the 1970s to the 1990s.
Look at Simon. His c __2__ are from the 1980s. His trousers are white and his shirt is purple. His tie is
yellow and red. He looks colourful.
Next is Amy. She looks c __3__ She is wearing a yellow cotton blouse and a pair of blue jeans. Young
people all like to wear jeans!
How beautiful Sandy is! She is w __4__ a black wool skirt, long red leather boots and a red silk
blouse. She is also wearing her hair in a 1990s style.
Daniel's s __5__ clothes are blue and yellow. He is also wearing a pair of colourful trainers. I think
trainers are very comfortable and they are young people's favourite.
以下视频信号传输接口中无法传输数字视频信号的是________。
A.DVI
B.HDMI
C.VGA
D.DisplayPort