可出现负性心尖搏动的是（）
A.心包积液
B.病毒性心肌炎
C.二尖瓣狭窄
D.高血压病
E.粘连性心包炎
参考答案：E
My teddy bear is _________.[ ]
A. hard
B. sleep
C. soft
Hong Kong was so busy over the Spring，Festval that all the hotel accommodation was full．She phoned several hotell but none of them had a()room．
A．cheap
B．nice
C．separate
D．vacant
