立式圆筒形油罐采用上部、中部和下部样方案组成组合样时,其体积比为()。
参考答案:1:1:1
用所给单词的适当形式填空。
Kangkang@renaiedu.com I wish your food festival a big success!
Dear Kangkang,
Thank you for __1__ (invite) me to your food festival. But I am sorry I have no time. Let me __2__
(tell) you something about __3__ (my) village school and Nigerian children.
I come from Eniwafi, Nigeria. I am an Olympic wrestler. I came to Canada in 1994 and __4__ (live)
here since then. My favorite food is fried chicken. My favorite sport is wrestling. But I also like soccer
and __5__ (run). I __6__ (win) a gold medal in the 2000 Sydney Olympics. The school in my village in
Nigeria is very old and small. It has very few school supplies . The children's parents have __7__ (make)
desks and chairs for their children. When it rains, the children get wet. So I want __8__(build) a new
school. Nigerian children are like children everywhere. They work hard at school and love to play games.
I am very __9__ (please) with you will do to help me. Please give my best _10__ (wish) to your friends.
Sincerely,
Daniel
下列哪个描述不属于室内型AP设备的安装规范()
A.安装位置必须保证无强电、强磁和强腐蚀性设备的干扰
B.如果AP安装在弱电井内,则需做好防尘、防水、安全措施
C.安装的地方要便于工程施工和运行维护
D.在杆体上安装天线防水箱使用抱箍固定在杆体上