国务院于2007年7月11日颁布了《民用核安全设备监督管理条例》(国务院第()号令)。
A. 300
B. 400
C. 500
D. 600
Why is the ring belt narrower in diameter than the skirt of a piston designed for a diesel engine?()
A. To allow for greater expansion due to higher operating temperature
B. To seal the cylinder against leakage of combustion gases
C. To provide an additional surface for oil cooling
D. To provide an additional strength for the crown and lower structure
LC主触头虚接、励磁机L或主发电机F的励磁绕组断路时,会造成主发电机无电压、电流。
A. 正确
B. 错误
会员制期货交易所召开会员大会,应当将会议审议的事项于会议召开()前通知会员。
A. 5日
B. 7日
C. 10日
D. 15日