______阀一般适用于低温、低压流体且需作迅速全启和全闭的管道。
A．旋塞
B．闸
C．截止
D．隔膜
参考答案：A
He hurt her _________ badly _______ she had to see a doctor.
A．too, that
B．so , that
C．either, or
D．too, to
实施钻芯检验外墙节能构造的机构应出具检验报告。检验报告至少应包括哪些内容？
