如图所示，小灯泡规格为“6V 3.6W”（灯丝电阻不变），闭合开关，当滑动变阻器的滑片P移至a端时，电流表示数为0.6A；当滑片P移至b端时，电压表示数为4V，则（   ）

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    Could we look back some day and say that Warren Buffett's greatest genius(天才) was finding two talented people to replace(代替)him? These two people are Ted Weschler, aged 56，and Todd Combs，aged 46，who have been chosen by Buffett as money managers to begin to1 the key investment(投资)operations of Berkshire Hathaway.
    But how did Ted and Todd catch Buffett's2? "These are the only two persons I could find, who read as 3 as I did, " Buffett says with a laugh. Actually he's not really kidding. Both Ted and Todd spend lots of time 4.
    Ted spends half a day reading many materials like5and trade periodicals(期刊). In a recent interview，Ted 6 that to become a successful investor, one needs to be hungry, curious and read all the time. Different kinds of reading will allow you to 7things that might give you an insight(洞察力)to where a business is going in five years.
    And Todd describes himself as a book with legs. He gets up at around 7 or 8 a.m. and reads 8about 7 or 8 p.m. . After dinner; he also leads for 9 hour or two in bed.
    What's the secret for financial success? It seems that 10a habit of reading really matters.

文章在总写中，用“从流飘荡，任意东西”表现了作者____的情态。在分写“异水”时，用  ____一句夸张地表现了江水极深、极清的特点。在分写“奇山”时，通过泉响、鸟鸣、蝉转、猿叫，反衬了山的  ____的特点。之后，通过“鸢飞戾天者……窥谷忘反”的抒情短论，表现了作者   ____ 的思想。最后，文章别具匠心地描绘了山中的又一奇景，突出了树多的特点，与前文一句“   ____” 相照应。

在操场上上体育课，体育老师发出的口令，近处的学生听到了，而远处的学生没有听清楚，其原因是（　　）

在实验室里常用干冰（固态的二氧化碳）（   ）