采用一条绳倒牛法保定牛时,胸环应经过( )。
A.颈部
B.肩关节
C.髋结节前
D.肩胛骨后角
E.肩胛骨前角
参考答案:D
.
Seeing your picture, I couldn’t resist _____ the days _____ we spent together.
A.to think of; when
B.to think of; which
C.thinking of; which
D.thinking of; when
活塞式压缩机排气压力异常的处理措施不正确的()
A.更换气缸活门
B.更换活塞环
C.调整气缸余隙
D.清理冷却水夹套