杜甫的诗句“丞相祠堂何处寻?锦官城外柏森森。”中“丞相”指的是()
A.管仲
B.诸葛亮
C.长孙无忌
D.魏征
参考答案:B
One minute she burst into _____, and the next she burst out _____. We just couldn’t catch her mood at any moment.
A.crying; laughter
B.tears; laughing
C.tears; laughter
D.crying; laughing
A.所得溶液中溶质的物质的量浓度为1.0mol•L-1
B.剩余气体中氮元素与氧元素的质量为7:8
C.原混合气体中NO2和NO的体积比为1:1
D.反应过程中转移的电子总数为0.1mol