阀式避雷器标称放电电流下的残压应不大于被保护电气设备标准雷电冲击全波耐受电压的（）。
A.100%
B.91%
C.71%
D.51%
参考答案：C
—Ken, why do you look so tired?
—I _____ myself _____ the climate since I came here.
A．hadn’t adapted; to
B．haven’t adapted; to
C．don’t adapt; from
D．didn’t adapt; from
简要介绍如何“听”？
