对川崎病最具诊断价值的心血管表现是（）
A.心包积液
B.二尖瓣反流
C.冠状动脉主干扩张
D.冠状动脉瘤
E.冠脉壁超声回声增强
参考答案：D
—Waiter, ________?
—Wait a minute, sir. That’s $ 80 altogether.
A．would you charge me
B．how much did we eat
C．may I have the bill, please?
D．would you take the money
简述再生制动和电阻制动。
