份的重量占总重量的:1÷3=13,
每份的重量为12×13=4(千克).
故答案为:4,13.
根据句意及汉语提示写单词。
1. Qingdao has many beautiful ___________ (海滩).
2. Jiangsu is ___________ (在……南面) of Shan-dong.
3. Mr. Green and his son live in a big ___________ (房子).
4. I have a pen friend from the U.S., but he can speak ___________ (汉语).
5. Australia is ___________ (著名的) for kangaroos.
下列选项属于TCP/IP协议设置内容的是()
A.IP地址和子网掩码
B.DNS
C.域名
D.服务器名