有抗震要求的框架，不宜以强度等级较高的钢筋代替原设计中的 钢筋。
参考答案：对
_____ that dress when he first saw you in the street?
A．Are you wearing
B．Did you wear
C．Have you worn
D．Were you wearing
ILOCK系统由哪些系统硬件组成？
