A:“祸兮,福之所倚;福兮,祸之所伏”
B:“兼爱”“非攻”
C:“己所不欲,勿施于人”
D:“仁者爱人”
—Can I have some tea ?
—Sure . ____(Here/There)you are .
将100mL 0.25mol•L﹣1BaCl2溶液加水稀释至500mL,Cl﹣物质的量浓度 ____