慢性髓性白血病患者，巨脾，突发左上腹剧痛，应考虑诊断是（）
A.脾梗死
B.心绞痛
C.胃穿孔
D.胰腺炎
E.以上均不对
参考答案：A
People just wonder ________ that makes the housing price so high.
A．what it is
B．what is it
C．why it does
D．Why does it
社会主义和谐社会的必要条件和基本标志是______。
A．科技进步 B．安定有序C．发展有序 D．竞争有序
