苍术的性味是（）。
A.辛、苦，温
B.辛、甘，温
C.苦、甘，温
D.辛、甘，寒
E.辛、苦，寒
参考答案：A
---Hi, guys. How was your party yesterday?
---Wonderful! We had a big meal and enjoyed __________.
A．themselves
B．myself
C．yourselves
D．ourselves
一般电弧焊机的电弧电压（工作电压）为（）
A.10～15V
B.15～20V
C.25～40V
D.50～100V
