6502电气集中车站在64D型继电半自动闭塞设备开通后是否可以取消闭塞,怎样办理?发车站可以取消闭塞。
马克思主义哲学同旧唯物主义和唯心主义的根本区别是()
A. 物质的观点
B. 实践的观点
C. 世界是可知的
D. 世界是不可知的
退税应收款融资是向企业提供的以()作为第一还款来源的短期融资
A. 商品价值
B. 退税应收款
C. 资产转让
D. 销售回笼
An exhaust gas bypass is installed on a waste heat boiler in order to ().
A. bypass exhaust gas at high loads to prevent excessive back pressure
B. bypass a portion of the exhaust gas at peak loads for better efficiency
C. recycle exhaust gas to the turbocharger
D. minimize moisture condensation in the boiler gas passages at low load