腰椎穿刺术后引起头痛的原因是()。A．脑压过低 B．刺激脑膜 C．脑部缺血 D．脑部

珠宝散功效与作用

“Who is that?” When watching the movie, Silver Linings Playbook, at the Toronto International Film Festival in early September, the woman sitting next asked me.

It seemed to be a strange question. I wanted to ask if she ever saw a little movie called The Hunger Games, or the Oscar-nominated movie Winter’s Bone. Instead, I just answered, “Jennifer Lawrence.” But I wondered how a moviegoer does not recognize Lawrence! As Silver Linings Playbook continued to unfold and Lawrence revealed herself as a wonderful comic actress, it hit me: this woman probably has never seen Jennifer Lawrence smile before. That is the thing throwing her.

Audiences will have the opportunity to watch Lawrence’s performance in Silver Linings Playbook when the film opens in limited release before a Thanksgiving weekend blowout expansion. The 22-year-old actress heads this year’s lead actress Oscar race by a country mile. Here’s an early main list of some competitors in this category.

1. Jennifer Lawrence in Silver Linings Playbook

2. Quvenzhane Wallis in Beasts of the Southern Wild

3. Marion Cotillard in Rust and Bone

3. Helen Mirren in Hitchcock

5. Emmanuelle Riva in Amour

6. Jessica Chastain in Zero Dark Thirty

Chastain, playing a CIA agent in Kathryn Bigelow’s Zero Dark Thirty, is the wild card here and, quite possibly, the only candidate capable of replacing Lawrence from the top spot. The cruelty in Rust and Bone will put off sensitive academy members, making Cotillard lose chances for a second Oscar. Wallis makes for a wonderful story, but it is too early for her to be awarded a lead actress. Riva will need a push to win the nomination of lead actress.

Mirren, as the Alfred Hitchcock’s wife and unsung partner, Alma Reville, might pose the biggest threat to Lawrence. Older academy members will love the historical Hollywood seen in Hitchcock, and Mirren’s role as the unsung wind beneath Hitch’s wings should find appreciation within creative circles. It’s not “The Queen”. but this year, it might be enough.

小题1: What’s the purpose of the first paragraph?

A．To introduce Silver Linings Playbook

B．To get us out of the topic.

C．To tell us a specific story

D．To bring out the topic of the passage小题2: The underlined sentence implies that    ?

A．Jennifer Lawrence doesn’t like smile.

B．Jennifer Lawrence’s smile can impress you all greatly.

C．The woman has never seen comic films featured by Jennifer Lawrence.

D．The woman hates to see Jennifer Lawrence’s films.小题3: Which of the following statements is true, according to the passage?

A．Cotillard once won the best actress Oscar.

B．Jennifer Lawrence was nominated because of The Hunger Games.

C．Mirren is the only one who can take the place of Jennifer Lawrence.

D．We cannot see the film Silver Linings Playbook before Thanksgiving.小题4:According to the last two paragraphs, who are likely to replace Jennifer Lawrence to become the best actress?

a.Quvenzhane Wallis    b.Marion Cotillard       c.Helen Mirren

d.Emmanuelle Riva     e. Jessica Chastain       f. Alma Reville

A．c, e

B．a ,c ,f

C．d, f

D．c, e, f小题5:The most suitable title of the passage is    ?

A．Silver Linings Playbook, the best movie

B．A 22-year-old actress

C．My favorite movie

D．Jennifer Lawrence takes the lead

稳定土类道路基层材料配合比中，石灰、水泥等稳定剂计量应以稳定剂质量占全部土（粒料）的（）表示。（CJJ1-2008 7.1.3 P43）。

A.质量百分率

B.干质量百分率

C.体积百分率

D.百分率

关于模数转换器的描述，错误的是（）

A.模数转换器是CT数据采集系统的主要组成部分

B.模数转换器的作用是将来自探测器的输出信号放大，积分后多路混合变为数字信号送入计算机处理

C.模数转换器的速度参数是指信号的采集速度，也就是数字化一个模拟信号的时间

D.模数转换器的速度参数与分辨力有关

E.模数转换器的精度参数是指信号采样的精确程度

对于胎盘生乳素（HPL）下列哪项是恰当的（）

A.可用于促排卵

B.是一种甾体激素

C.随妊娠进展而增加，直至孕末期

D.主要南朗格汉斯细胞分泌

E.葡萄胎时HPL升高