下列能引起业务异常的情况是() ["单板插座损坏与背板接触的插座异常","控制信号异常","倒换信号异常","板位信号异常"]
列车中相互连挂的车钩中心水平线的高度差,不得超过75毫米。
禁止旅客携带危险品进站上车。
创业投资的方式有()。 [" 购买投资对象发行的债券"," 参股创业投资"," 跟进投资"," 一次性投入创业股权资金"]
Which two features prevent routing loops between the OSPF sites of a customer when the sites aremultihomed or a backdoor link is used between the sites? () ["sham link","down bit","virtual link","Site of Origin","domain tag"]
女性肌纤维的横截面积小于男性,成年后的男女大多数肌群的力量比约为()
女性肌纤维的横截面积小于男性,成年后的男女大多数肌群的力量比约为()
- A1:0.4~1:0.2
- B1:0.5~1:0.3
- C1:0.7~1:0.5
- D1:0.9~1:0.7