肺结核的好转期为( )
A．新发现的病变B．空洞较前增大C．空洞闭合，痰菌连续阴性1年D．病变较前扩大E．空洞闭合或缩小
参考答案：E
Peter was so angry at all ____ Mary was doing ___ he walked out.
A．what; as
B．what; that
C．that; which
D．that; that
常有的反渗透器有哪些？
