Ⅱ型急进性肾炎为（） A.补体持续降低 B.补体于6～8周恢复正常 C.补体降低可提

氢氧化钠长期暴露在空气中会逐渐变质．检验氢氧化钠是否变质的试剂是______，若已变质则检验时可观察到的现象是______．制作叶脉书签，要配制50g 10%的氢氧化钠溶液，需要氢氧化钠的质量是______ g．

阅读理解。

    With its budget of $80 million, John Woo as director, and an all-star cast (明星云集

的演员阵容), Red Cliff is the most expensive and ambitious Asian-financed film ever. Last

week I saw the release of the second part, and boy oh boy does it shows.

    But watching the film as a foreigner I felt I was missing out on something. Not knowing

my Cao Cao's from my Zhou Yu's, I was not even sure whom I wanted to win. Certainly after

the opening scene, in which Cao Cao is seen watching a game of Cuju, an ancient Chinese

variation of football, I knew who had my support. After all, any man who enjoys his

football is someone after my own heart. But after Cao Cao resorted to some evil strategies

against his enemies in the south, I wasn't so sure he was the man I should be rooting for. 

    And there is a lot more to Red Cliff 2 than just extravagant battle scenes. The film

does not take itself too seriously. Conversations between leaders are littered with one-

liners, many of which had the audience in laughter. There is even enough to keep fans of

more romantic entertainment happy too. This includes a charming relationship between a

southern spy (侦探) and an innocent northern soldier. The characters' interaction provides

some genuinely heart-warming moments in the middle of the battle.

    Clocking in at(结束于) around two hours, the film certainly does justice to the

history story. When I walked out the cinema, I felt as drained (精疲力竭) as Cao Cao's

soldiers must have 1,800 years ago.

1. By expressing "boy oh boy" in the first paragraph, the author seems to show that _____.[ ]

A. the film characters are like boys who are childish.

B. the film provides amazing and surprising scenes for audience.

C. the film is suitable for younger boys to watch.

D. the film scene is so bloody that boys shouldn't watch it.

2. When did the author change his attitude toward Cao Cao? [ ]

A. When he read the history story about Cao Cao.

B. When he saw Cao Cao was watching a game of Cuju,

C. When he realized that Cao Cao took some bad measures to beat his enemies.

D. When he saw the romantic love story of Cao Cao and a southern spy.

3. The following factors of the film are all mentioned in the passage except _____. [ ]

A. high budget

B. leading roles

C. actors and actress

D. conversations

4. From the passage we can infer that _____. [ ]

A. the author is a football fan in a foreign country

B. Cuju is the name of an ancient Chinese variation of football

C. the film Red Cliff 2 lasts about two hours

D. the author was very tired after about two hours' battle

纳米

滚动轴承由外圈、内圈、滚动体、润滑脂和保持架组成。

某建筑柱下桩基承台，采用6根沉管灌注桩，桩身直径d=426mm，桩端进入持力层的深度为2500mm。桩基承台顶面处作用有竖向力F、力矩M和水平剪力V，承台及承台土的平均重度YG=20kN／m3。承台平面尺寸和桩位布置、桩基础剖面和地基土层分布情况见图6.1.6所示。按《建筑地基基础设计规范》作答。

已知粉质黏土、淤泥质土和黏性土的桩周摩擦力特征值qsia依次分别为15kPa、10kPa和30kPa，黏性土的桩端土承载力特征值qpa为1120kPa。单桩竖向承载力特征值RA（kN），应与下列（）项数据最为接近。（）

A.499.4

B.552.7

C.602.9

D.621.2