缩窄性心包炎的临床治疗原则是
A．抗结核药物治疗B．强心利尿C．尽早施行手术治疗D．心包穿刺或胸腔穿刺E．全身支持治疗，不需手术治疗
参考答案：C
Great changes have taken place in that school. It is no longer _______ it was 20 years ago, _______ it was so poorly equipped.
A．what; when
B．that; which
C．what; which
D．which; that
锅炉房与民用建筑的间距一般为（ ）。
A．6-14m
B．14-20m
C．3-6m
D．20m以外
