关于图中高度的说法，正确的是
A．甲相对于乙的高度是150米
B．甲相对于乙的高度是110米
C．甲的海拔高度是40米
D．甲的海拔高度是150米
答案：D
填空。
1. This is a ________ mouse. That's a ________ elephant. (small, big)
2. Tom's is ________. Mary's is ________. (new, old)
3. The rabbit (兔子) has very ________ ears.
The cat has very ________ ears. (long, short)
向非同一组织系统的任何机关发送的文件属于（）
A.上行文
B.平行文
C.下行文
D.越级行文
is ________. Mary's 
is ________. (new, old)
The rabbit (兔子) has very ________ ears.
The cat has very ________ ears. (long, short)