超声波治疗选用移动法时,声头移动速度为()
A.1~3cm/s
B.3~5cm/s
C.5~7cm/s
D.7~9cm/s
E.无所谓
参考答案:A
财产保险的基本职能是()。
A.补偿损失
B.给付保险金
C.防灾防损
D.融通资金
---What’s your favorite ______ ?
--- Christmas. We can have a long vacation and eat much delicious food.
A.subject B. festival C. animal