防误闭锁装置包括()
A.微机防误闭锁
B.电气闭锁
C.机械锁
D.带电显示装置
参考答案:A, B, C, D
The Chinese are proud of the 29th Olympic Games in Beijing in 2008. [ ]
A. hold
B. holding
C. held
D. to be held
用贷款购买设备,企业可将所支付的利息及折旧从成本中扣除而免税,并且可以回收( )。
A.净值B.残值C.净现值D.剩余价值