（）不是分子具有的能级。
A.质子能级
B.电子能级
C.振动能级
D.转动能级
参考答案：A
---Did your father buy a gift for you on your birthday?
---No. I got some gifts that day. They_____________by my aunt and uncle.
A．buy
B．were bought
C．are bought
D．bought
女性患者，38岁，心悸、胸闷10天。
该心电图最易误诊为
A．二度Ⅰ型房室传导阻滞B．窦性心律不齐C．二度Ⅱ型房室传导阻滞D．窦性停搏 E．二度Ⅱ型窦房阻滞
