ADSL面对较小的动态范围要求，而VDSL相对要复杂得多
参考答案：错
. “How do you like the food in this restaurant？” “Oh, _______. We couldn’t have found a better place.”
A．too bad
B．Sorry
C．wonderful
D．impossible
A．上升了cm
B．上升了cm
C．下降了cm
D．下降了cm
cm
cm
cm
cm