下列哪一项不是轮胎式液压挖掘机行走装置的传动方式.（）
A.机械传动
B.液压机械传动
C.全液压传动
D.气动传动
参考答案：D
根据句意及首字母补全单词。
1. She won a g_____ medal at the last Olympics
2. The old man is kind and l_____. Every child here loves him.
3. In 2004 Olympics Liu Xiang set a new r_____ in 110 hurdles.
4. Alice is a college student. She studies at Beijing U_____
5. The boy could hum songs and difficult p_____of music.
6. Thaat's Deng Yaping.She is a great C_____ ping-pong player.
7. He began to l_____ the piano when he was seven.
8. He was b_____ in 1982 in Chongqing.
9. We all like ice s_____.
10. W_____ was Lily born?
为什么不能用铜丝和铁丝来代替保险丝？
a new r_____ in 110 hurdles.