都市紧凑型SUV昂科拉采用四路Canbus总线控制，且四路双速总线相当于以往速度（）倍。
A.40
B.45
C.50
D.55
参考答案：C
They went on well at first but eventually everything ______ they had worried about happened．
A．which
B．what
C．that
D．When
为增大船舶稳性，宜采取（）。
A.双层底压载
B.加满压载水
C.对称压载
D.以上均是
