下列化合物泻下作用最强的是 A．大黄素 B．大黄素葡萄糖苷 C．番泻苷A D．大

具有芽胞且在培养时需要氧气的细菌是（）

A.破伤风梭菌

B.艰难梭菌

C.肉毒梭菌

D.产气荚膜梭菌

E.炭疽芽孢杆菌

当前，四川省在承接产业转移中，重点构建“六带、一链、四集群”格局，形成和壮大一批优势特色产业链、产业带和产业集群。从企业经营角度看，这种产业格局对企业的吸引力在于[ ]

①延伸企业产业链，促进产销相对稳定

②市场信息比较灵敏，交易成本相对降低

③增强综合竞争优势，确保企业经济效益

④规避市场竞争，降低企业生产经营

A、①②

B、①④

C、②③

D、③④

阅读理解。

     You may have heard the term "the American Dream". In 1848, James W. Marshall found gold in

California and people began having golden dreams. That 19th century "American Dream" motivated

the Gold Rush and gave California its nickname of the "Golden State".

    The American Dream drove not only 1800s gold-rush prospectors(采矿者)but also waves of

immigrants throughout that century and the next. People from Europe, and a large number of Chinese,

arrived in the US in the 19th century hoping that in America they would find gold in the streets. But

most, instead, worked as railroad laborers. They created the oldest Chinatown, in San Francisco, and

gave the city a Chinese name "the old gold hill".

     In the 20th century, some critics said that it was no longer possible to become prosperous through

determination and hard work. Unfair education for students from poor families and racial discrimination

almost made the American Dream a nightmare(噩梦).

     Then, in the 1990s, California saw a new wave of dreamers in Silicon Valley. People poured their

energy into the Internet. This new chapter of the American Dream attracted many business people and

young talents from China and India to form start-ups and seek fortune in America. Better pay, a nice

house, and a rising standard of living will always be attractive. However, the new American Dream is

no longer just about money. It encourages Americans to consume wisely to protect the environment,

improve the quality of life, and promote social justice.

    The Governor of California, Arnold Schwarzenegger has become the model of the new American

Dream. After years of hard work, he grew from a poor young man from Austria into a super movie

star and then a governor. Many people hope his story can save the American Dream and give California

a brighter future.

1. The "American Dream" was appealing to _______________.

A. Americans only.              

B. Chinese and Indians .    

C. Europeans.                  

D. people all over the world

2. It can be inferred that ____________.  

A. America's golden dream could never be realized

B. different times have different themes of the American dream

C. America's golden dream brought great fortune to Chinese immigrants

D. determination and hard work are the best way to realize the American dream

3. Why did most of the early immigrants work as railroad laborers?

A. Because they could earn more money as railroad laborers.

B. Because they thought railroad was the first step to find gold.

C. Because railroad laborers were greatly honored at that time. 

D. Because they had to make a living by working as railroad laborers.

4. The underlined sentence in the last paragraph indicates that ___________.

A. most of the immigrants to America don't reach their previous goals

B. the dream of seeking fortune in America is easy to realize

C. the success of Arnold Schwarzenegger is a common example of the immigrants

D. the immigrants have made great contributions to California

5. Which may be the best title of the passage?

A. Waves of Immigrants to America            

B. Hard Work Leads to Success

C. Changes of America's Golden Dream        

D. Make Fortunes Abroad

左氧氟沙星片及注射剂的适宜保管温度是（）

A．2℃

B．2～10℃

C．不超过20℃

D．10～30℃

E．遮光并且温度不超过20℃

上年度存货平均余额为700000元，其中超储积压等不合理占用额为50000元，本年度生产增长15%，存货周转加速率8%(包括成本降低因素)，则存货资金占用量为( )元。

A．650000

B．687700

C．805000

D．869400