空调机组紧急通风继电器的代号是()。
参考答案:K6
具有消食和胃、发散风寒功效的药物是()
A.紫苏
B.藿香
C.山楂
D.神曲
E.陈皮
Little wonder _____ up their hands in dismay.
A.have some thrown
B.some have thrown
C.thrown some have
D.have thrown some