【判断题】IEEE802.3协议是指总线网介质访问控制协议CSMA/CD及物理层技术规范。( )
【判断题】在贫富与道义发生矛盾时,孔子宁可放弃道义也不会受穷。
【判断题】在贫富与道义发生矛盾时,孔子宁可受穷也不会放弃道义。
【判断题】When the class rate or general cargo rate applicable to the consignment is lower than the specific commodity rate, this lower rate can be applied.
【判断题】When the class rate is higher than the general cargo rate, then choose the lower rate for the carrigage of cargo.
【多选题】热继电器能否作短路保护?为什么?
C.
因为热继电器主双金属片受热膨胀后,会让其触头动作起短路保护。
D.
因为热继电器主双金属片受热膨胀的热惯性及操作机构传递信号的惰性原因,使热继电器从过载开始到触头动作需要一定的时间,也就是说,即使电动机严重过载甚至短路,热继电器也不会瞬时动作,因此热继电器不能用作短路保护。
【多选题】According to the current classification by SAIC (国家工商总局), the four categories of foreign direct investment in China include .
A.
Sino-Foreign Equity Joint Ventur
B.
Sino-Foreign Co-operative Joint Venture
C.
Wholly Foreign Owned Enterprises
D.
Foreign-Funded Companies Limited by Shar es