可使粪便化学法隐血试验出现假阴性的物质是（） A.铁剂 B.铋剂 C.维生素C D.

建筑产品的时代性和社会性决定建设工程环境管理具有（）的特点。

A．协调性和复杂性

B．相关性和多样性

C．多样性和经济性

D．符合性和适应性

阅读理解。

     Life is full of sweet surprises for Chinese pop singer Edell.

     She majored in design in a Canadian college. But when she was looking for a job after graduation, she

found herself rising as a star in singing. Then she became a hostess on TV. "These are roles I never

expected to take," she said.

     Edell is open to every possibility in life, not afraid to try new things. She says that every day she tries to

get herself ready to take any chance that occurs in life.

     "My mom told me chance only rewards those with a prepared mind,"she said. "So I've tried to explore

my potential talents. Thus I won'be at a loss when the right opportunity comes up." Edell learned ballet in

her childhood until she broke her back in practice. She then fell in love with music. Like many girls of her

age, she has a rich collection of CDs. But she never dreamed of being a singer.One day she was noticed by

a talent scout (星探). she gave a try and succeeded! And that's not the end of the story.

     Once she was invited to be the hostess of the Asian MTV Awards in Thailand. Though she has never

had any experience, she accepted the invitation."At least I could make a trip to the foreign country," he said.

Upon arrival at the ceremony, she had to read through a 91-page English biography of every guest. She

studied it so much that she could recite all the details in it. It helped her greatly. She greeted those strange

faces she had never seen before and talked with them like an old friend. She did a great job. The MTV

channel was so satisfied that they offered her a job as a TV hostess.

     "Try to get yourself well-prepared in life,"she said. "In the meantime, try to live your life with brains."

1. What is the best title of the passage?

A. Learn from Edell

B. Try to be a singer

C. Prepare for your chances

D. Do learn English well

2. The writer mentioned Edell's mother to tell us _____.

A. her mother had great influence on her

B. she could do nothing without her mother

C. all her success belonged to her mother

D. her chances were given by her mother

3. What does the underline word "It" refer to?

A. Studying the English biography hard.

B. The 91-page English biography.

C. The ceremony of the Asian MTV Awards.

D. The MTV channel.

4. What is Edell's strongest character?

A. Liking to remember things.

B. Liking to help others.

C. Liking to think of problems differently.

D. Liking to try new things.

车站一切电话中断时，无论单线行车或双线行车，都按书面联络法行车。

采用国际标准和国外先进标准通常遵循的原则有哪几条？

改善重症肌无力症状的药物是（）

A.糖皮质激素

B.免疫抑制剂

C.胆碱酯酶抑制剂

D.免疫球蛋白

E.抗生素