孩子摄入过多的铝有哪些危害？

(12分) 在反应SO₂ + Cl₂ + 2H₂O =" 2HCl" + H₂SO₄中,氧化剂是:______，

还原剂是:_______________,被氧化的物质是:________,发生还原反应的物质是:___________.当有1mol的HCl生成时,反应中转移的电子数是:__________mol,参加反应的SO₂的质量_________克.

佟某，男，65岁。1周前突发性的脑溢血。经综合抢救，现神志清楚，血压稳定。CT检查，未发现有新的脑出血现象。但患者右半身不遂，口角歪斜，语言丧失，有理解能力，检查尚能配合，大便干结，小便色黄，舌质偏红，苔黄腻，脉弦滑数。针灸科大夫决定以头针为主进行治疗。

治疗佟某时，以下操作方法中错误的一项是：（）

A.头部消毒后，快速进针

B.进针时以推进式进针法为主，不捻转

C.快速捻转，每分钟使针体来回快速旋转200次左右，捻转持续0.5～1.0分钟

D.静留针后每隔数分钟，依照快速捻转法作捻转行针

E.因病人脑溢血或半身不遂，为防再出血或使患者不便，针刺期间不要求其配合肢体活动

如果风险资产市场价格持续下降，投资组合保险策略的表现可能（）买入并持有策略。

A．优于

B．劣于

C．相当

D．不确定

1μF=（）F。

A.10^-6

B.1000

C.10

D.10^-12

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.

The boldfaced word "poignancy" in Paragraph 1 is closest in meaning to ______.

A．happiness

B．clarity

C．cleverness

D．sadness