一个未经治愈的活动性肺结核病人，1年能传染（）个人.
A.10～15
B.5～10
C.15～20
参考答案：A
On Sunday when I was a little boy, father and I____ get up early and go fishing.
A．could
B．would
C．might
D．should
连排扩容器水位调整门泄漏应如何隔绝？
