耳硬化手术治疗所选用的主要手术为________和________。
参考答案：人工镫骨手术 内耳开窗术
— Where were you at 7:00 last night?
— I _____ to my mom at home.
A. write B. was writing C. wrote
不属于砌体房屋静力计算方案的为( )。
A．刚性方案
B．弹性方案
C．塑性方案
D．刚弹性方案
