若出现系统误动作，则从车载网络上考虑，故障可能是（）
A.节点故障
B.链路故障
C.电源电路问题
D.以上答案均不对
参考答案：A
下列比较关系与排列顺序不正确的是
A．酸性：H4SiO4＜H3PO4＜H2SO4＜HClO4
B．熔沸点：HF＜HCl＜HBr＜HI
C．还原性：SiH4＞NH3＞H2O＞HF
D．半径：Al3＋＜Mg2＋＜Na＋＜F－
When asked the reason for moving to the USA, he said, “Soccer is huge around the world apart from America, so that’s_________ I want to make a difference.”
A．where
B．why
C．what
D．how
