根据《长途光缆波分复用（WDM）传输系统设计规范》，列柜的二级熔丝应采用空气开关型熔丝，选取时宁小勿大。
参考答案：错
风湿性关节炎的特点是多为_____常呈_____性_____性及恢复后不留畸形。
--- Are you coming to Davy’s party, Kate ?
--- I’m not sure, I ________ go to the movies instead.
A．would
B．should
C．might
D．must
