植物性药材浸提过程中的主要动力是（） A.扩散系数 B.扩散面积 C.扩散时间 D.

在Rt△ABC中，∠C=90°，AB=3，BC=1，则sinA=（    ）tanA=（    ）cosA=（    ）。

心脏听诊，听到“大炮音”应考虑

A．运动或发热

B．P-R间期缩短

C．二尖瓣狭窄

D．甲状腺功能亢进

E．完全性房室传导阻滞

阅读理解。

     Marking the opening of a new decade, 2010 has brought us many surprises and delights. It has also

delivered its fair share of pain and frustration. Many delivered its fair share of pain and frustration. Many

of the stories and headlines from this year have influenced our lives and left their marks on our vocabulary.

Let's look at some of the year's brief highlights.

     The South Africa's World Cup-vuvuzela

     This was the first World Cup staged on African soil. Before it opened. there were real concerns about

the stadiums. infrastructure and safety. However, all worries disappeared, and for four glorious summer

weeks South Africa became the focus of world attention, along with a global debate over noisy vuvuzela.

     The Chilean miners-promotional video

     On August 5, a Chilean mine accident trapped 33 miners 700 meters under the earth. The 69-day

underground life that followed was the year's global hot suspense drama, feel-good story and soap opera

all rolled into one. The media joked that the live broadcast of miners' release was a great promotional video

for the country.

     The Shanghai World Expo-"gelivable"

     More than 73 million people visited displays by 189 countries and regions at the Shanghai World Expo

which ran from May l to October 31. With the theme of "Better City, Better Life", the Expo boosted

Shanghai's economy and established its reputation as a city of world stature. The spirit of volunteerism was

a highlight of the event. Some 600,000 volunteers were described as "gelivable" (geli) by Internet users.

1. The underlined word "frustration" in Paragraph l means "____".

A. happiness

B. excitement

C. disappointment

D. anger

2. The first paragraph is used as ____.

A. an introduction to the following

B. an example of unusual events in 2010

C. a supporting to the writer's argument

D. a proof to identify the facts

3. The worrying World Cup in South Africa finally turned out to be ____.

A. troublesome

B. noisy

C. tiring

D. successful

4. The world events in 2010 ____.

A. have an impact on our lives and words using

B. have actually a global debate over noisy vuvuzela

C. have led to a hot global suspense drama

D. have been described as"gelivable" by Internet users

桂枝解热镇痛的主要有效成分是（）

A.挥发油

B.有机酸

C.生物碱

D.皂苷

E.香豆素

“全面检全面修”的检查范围和质量标准规定：非提速铁路货车钩尾框托板、钩尾扁销及（）螺母无松动、丢失，开口销无丢失。