Two and four is _____.A. fiveB. six C. s

《医疗废物管理条例》中所称医疗废物，是指医疗卫生机构在医疗、预防、保健及其他相关活动中产生的（）

A．麻醉、精神性药品的废弃物

B．放射性、医疗用毒性药品的废弃物

C．具有直接或间接感染性、毒性以及其他危害性的废物

D．医院制剂配制中产生的中药材废渣

E．普通医疗生活用品废弃物

Heather Mills McCartney lives an admirable life, attending celebrity parties, meeting regularly with the rich and famous and doing meaningful work for charity. All who work with her admire and respect her. But Heather’s life hasn’t always been so easy. When Heather was only 9 years old, her mother abandoned her and her two brothers. At the age of 13, she ran away from home and ended up living on the streets in London. Eventually, however, her exceptional beauty led to a career in modeling. At that time, Heather also began helping with the war relief efforts in former Yugoslavia. Through her modeling and relief work, she soon became famous.

But in August 1993, at age 25 her life changed once again. She was crossing the street in London when a motorcycle crashed into her. She was so badly injured that the doctors had to cut off her left leg. After that, she discovered she frequently needed to change her artificial limbs. It was expensive and she felt it was a waste to just throw away the old one. It occurred to her to set up an organization that could deliver used artificial limbs to Yugoslavia and other war-torn countries. It was through her charity work that she met her husband Paul McCartney.

Throughout her life, Heather has risen above problems and focused on helping others. Her work with artificial limbs even earned her a nomination(提名) for the Nobel Peace Prize in 1996. Heather’s persistence and determination are what impresses anyone who knows her. Heather believes anyone can make a positive difference in the world.

小题1:This passage is mainly about _________.

A．Heather’s miserable life

B．Heather’s contribution to the world

C．Heather’s success in her work

D．Heather’s belief in life小题2:Heather began her modeling career _________.

A．due to her mother’s encouragement

B．after her brothers abandoned her

C．because of her excellent intelligence and performances

D．because she was especially beautiful小题3:Which of the following is Not true according to the passage?

A．Heather won the Nobel Peace Prize in 1996.

B．Heather began her charity work while working as a model.

C．Her artificial limbs had to be replaced continuously.

D．Heather has never been defeated by her problems.小题4:From the passage we can infer that people admire and respect Heather because

_________.

A．she had a lot of misfortunes during her childhood.

B．she was a world-famous model

C．she is determined and never gives in

D．she made a great difference in the world

设y(x)在(-∞，+∞)连续，又当△x→0时α是比△x高阶的无穷小，函数y(x)在任意点处的增量△y=y(x+△x)-y(x)满足

且y(0)=π，则y(1)=______．

货品具有供应商、货品特性、数量和进货规定四个特征。( )