猜谜语。
身穿大皮袄,野草吃个饱,过了严冬天,献身毛。( )
绵羊
Read,look and choose. (读句子,看图,选出与句子内容相符的图片)
1. Look at that pair of boots.[ ]
2. I like eating carrots.[ ]
3. The cow is black and white.[ ]
4. Do you want a tomato?[ ]
站内线路、道岔发生故障时,应按规定()防护。
A.点燃火炬
B.放置响墩
C.用手信号
D.设置停车信号