①善意的谎言不具有社会危害性
②善意的谎言不违背诚信的核心
③店员谎称有优惠活动,体现了对该环卫工的尊重与关爱
④善意的谎言终究还是谎言,不利于良好社会风气的形成
A:①②
B:①④
C:②③
D:③④
x=____
It's very convenient ______ us to buy train tickets now because we can buy them either from the station or on the Internet.