【单选题】在恒温恒压不做非体积功的条件下,下列哪一过程最可能为自发进行过程?
【单选题】在恒温恒压,不做非体积功的条件下,某一化学反应过程是吸热过程,且反应的熵值是减少的,下列哪种说法正确
【单选题】He has just got ___________ a nice girl and is always __________ a big smile on his face. A.engag
A.
9. He has just got ___________ a nice girl and is always __________ a big smile on his face. A.engaged to, having on
C.
engaged in, putting on
【单选题】John has not yet passed the driving test, and ____.
B.
Henry also has not either
【单选题】___________ of them has any great ability.
【单选题】There are ______________ days in a year. [ ]
A.
three hundred and sixty-five
B.
three hundred and sixty
【单选题】—Tom has grown taller than before recently. ---________, and ___________.
A.
So he has, so have you
B.
So he has, so you have
C.
So has he, so have you
D.
So has he, so you have
【单选题】在恒温恒压,不做非体积功的条件下,已知某一化学反应过程, Δ r H <0 , Δ r S <0 ,试问该反应在下列哪种情况能自发进行
【单选题】251GXGZ.破底清筛轨枕底道砟连续3根及以上,进行人工捣固作业,施工结束,开通后列车限速的速度阶梯是(..)。
A.
(A)第一列25km/h,第二列45km/h,不少于4h,以后限速60km/h至下次封锁前1h
B.
(B)第一列25km/h,第二列45km/h,不少于12h,以后60km/h、80km/h、120km/h各不少于24h,其后正常(允许速度≤120km/h的线路为80km/h,24h后恢复正常)
C.
(C)第一列15km/h,第二列25km/h,第三列45km/h,不少于4h,以后限速60km/h至下次封锁前1h
D.
(D)第一列15km/h,第二列25km/h,第三列45km/h,不少于4h,以后60km/h、80km/h、120km/h各不少于24h,其后正常
【单选题】Our robot has never caught a virus, ▲ .
B.
neither our computer has
D.
neither has our computer