急性脓胸具有确诊意义的是
A．持续高热
B．胸痛气促
C．患侧呼吸音消失
D．纵隔移向健侧
E．胸穿抽出脓液
参考答案：E
____ she couldn’t understand was _____ fewer and fewer students showed interests in her lessons.
A．What; why
B．That; what
C．What; because
D．Why; that
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