检查颈静脉怒张的合适体位应取
A．平卧位
B．侧卧位
C．坐位
D．站立位
E．30°～45°的半卧位
参考答案：E
—Were you at home yesterday?
—_______________________ [ ]
A. Yes, I were
B. Yes, I am
C. Yes, we are
D. Yes,I was
贵金属铸造义齿支架焊接时，应选用的焊料是
A．高含金量金焊
B．银焊
C．铜焊
D．锡焊
E．锌焊
