某恒温恒容的容器中,建立如下平衡:2NO2(g) N2O4(g),在相同条件下,

题型:选择题

问题:

某恒温恒容的容器中,建立如下平衡:2NO2(g) N2O4(g),在相同条件下,若分别向容器中通入一定量的NO2气体或N2O4气体,重新达到平衡后,容器内N2O4的体积分数比原平衡时 [ ]

A.都增大

B.都减小

C.前者增大后者减小

D.前者减小后者增大

考点:影响化学平衡的因素
题型:选择题

下列关于物质用途的叙述中错误的是[ ]

A.明矾可用作净水剂

B.水玻璃可用作木材防火剂

C.氨可用作制冷剂

D.磁性氧化铁可用作红色油漆和涂料

题型:选择题
a是大于0的整数,当a______时,
5
a
是真分数;当a______时,
5
a
是假分数.
题型:选择题
解方程.
13+x=28.5
2.4x=26.44x+13=365
30x+15x=22.596÷6+4x=563x-2×7=40.
题型:选择题

Sofia Coppola’s "Lost in Translation" is a funny, bittersweet movie that uses cultural dislocation as a metaphor for people who have gotten lost in their own lives. The movie contains priceless slap-stick from Bill Murray, finely tuned performances by Murray and the beautiful Scarlett Johansson and a visual and aural design that cultivates a romantic through melancholy mood. In only her second feature, Coppola has made a poised, intelligent film that nicely balances laughs with a poignancy rarely seen in American movies. If Focus Features markets "Lost in Translation" carefully, this most original comedy could win audiences well beyond art houses.
Bob Harris (Murray) is a grumpy movie star in town to shoot a whiskey commercial. He is not only plagued by jet lag and gloom over a deteriorating marriage of many years, he is also in the midst of a midlife crisis that dampens his spirits but not his wit.
Charlotte (Johansson) , the neglected wife of a photographer, experiences a similar air-condl-tioned nightmare. Married two years, she already feels lost in the relationship, unable to partici-pate in her husband’s career or pinpoint what she wants out of life. When she ventures into the city, she is confronted by a distorted version of Western modernity.
These two people discover each other late at night at the bar. Neither one can sleep. A friend-ship evolves in their mutual isolation.
Coppola sees in Tokyo’s crowded, neon-lit urban landscape a society estranged from its own culture. The night is filled with pleasure-seekers obsessed by games, toys and American pop culture. Only when Charlotte takes a train to Kyoto is she able to experience the old Japan of ancient temples and gardens, tea houses and kimono-clad figures. This role fits Murray like his own skin. A middle-aged burnout who sees no challenges on his horizon gradually changes into a man revitalized by another alienated soul. His comic touch enriches the character with a self-deprecating wit and in a few sequences, a rubbery physicality that earns sustained laughs. Johansson makes Charlotte’s loneliness and disillusionment palpable as the woman is cut off from life in ways she never imagined.
Using high-speed film stock, cinematographer Lance Aeord gives the glaring neon and num-bingly sleek interiors a kind of romantic sheen. The score produced by Brian Reitzell created out of Japanese musical themes and "Tokyo dream-pop" adds to the sense of an Eastern city that has succumbed in large measure to Western culture.

"Lost in translation" is a movie about ______.

A.a couple who sought happiness in a foreign country

B.some westerners keen on learning the oriental culture

C.the funny experiences of some film-making crew in Japan

D.people whose lives got disrupted in an alien culture

题型:选择题

脚手架采用的扣件,在螺栓拧紧扭力矩达()时,不得发生破坏。

A.55N2m

B.65N2m

C.75N2m

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