液体燃料的空气过剩系数范围（）。
A.1.2---1.5
B.1.05---1.15
C.1.15---1.25
参考答案：C
Dogs have a very good _____ of smell and are often used to search for survivors in an earthquake. [ ]
A. view
B. feeling
C. sense
D. idea
皮肤瘾疹，锨红灼热作痒，多发于暴露部位或遍布全身，其病因是
A．湿盛
B．血虚
C．热胜
D．风胜
E．湿胜
