38.4 g铜与适量浓HNO3反应,铜全部作用后共收集到33.6L气体,则反应消耗HNO3的物质的量为多少?
2.7mol
下列加点字的读音全对的一组是 ( )
A.秦军汜(sì)南夜缒(zhuì)而出佚(yì)之狐
B.共(gòng)其乏困若不阙(jué)秦许君焦瑕(xiá)
C.秦伯说(yuè)杞(qǐ)子杨孙戍(shù)之
D.逢(féng)孙微夫(fū)人之力不及此失其所与,不知(zhì)
A dream is to a man________wings are to a bird.If you have no dreams,your future is empty. [ ]
A. where
B. what
C. that
D. which