choose the best answer from the four choices.
A. They are often washed well to be clean.
B. They cannot be killed and eaten for food.
C. They can’t walk around freely by themselves.
D. They walk with a rope around for their safety.
查看答案
chooce the best answer from the four choices.
A. They worried about the protection of cows.
B. They asked the government to protect cows.
C. People saw them killing the treasured cows.
D. People mistakenly thought they killed cows.
Now you will hear a news report. At the end of the report, you will hear some questions. After you hear a question, choose the best answer from the four choices.
A. People use the Internet to seek different advice.
B. People use the Internet to read interesting news.
C. Over half of all adults in the US use the Internet.
D. Over half US adults get medical information online.
choose the best answer from the four choices.
A. Not many elderly people have Internet service at home.
B. Not many elderly people use online health information.
C. The elderly think online medical advice is very important.
D. The elderly don’t really like to use email or online banking.
CASS坐标数据文件扩展名是“DAT”，其格式为：1点点名，1点编码，1点Y（东）坐标，1点X（北）坐标，1点高程…N点点名，N点编码，N点Y（东）坐标，N点X（北）坐标，N点高程
A. 对
B. 错
微信支付 
支付宝支付