保护接地电阻要求小于()。
A.30Ω
B.15Ω
C.10Ω
D.4Ω
参考答案:D
Sarah Brightman, ________ will fly to space in 2015, is the first woman to fly there in the field of music.
A.who
B.that
C.which
D.whose
比较伦敦协会货物保险条款与中国人保海上运输货物保险条款的主要异同?