每百元商品产值总成本愈低，说明生产耗费的经济效益愈好。

王亮在超市看到一种电池外壳的纸层包装印有右图的文字，请根据要求回答问题．

（1）该电池的种类是______（填序号）．

①干电池  ②蓄电池  ③燃料电池

（2）该电池含有的金属元素中毒性最大的是______（写元素符号）．

（3）该电池的使用和性能，说法正确的是______

A．该电池可应用于闹钟、收音机、照相机等

B．该电池可充电后反复使用

C．该电池使用后不能投入火中，应埋入地下以防污染环境．

腰1～5椎间盘突出（）。

A.小腿前外侧麻木

B.膝反射减弱

C.外踝及足外侧麻木

D.踝反射减弱

E.膝反射亢进

Funeral homes aren’t just for dead peopled . They’re for our passed–on pets too these days. Pet Angel Memorial Center in Carmel. Indiana, helps guide grieving （悲痛的）animal owners through a vast range of burial and menorial options . The staff of five, all former clients （顾客）, then carries out the owner’s wishes . Perhaps the most important service the center provides, though, is an understanding to cry on .

Owner Coleen Ellis started the country’s first pet funeral home there years ago after the death of her dog Mico. It was then that she discovered her veterinarian（兽医）, like most throughout the United States, put dead animals in garbage bags and stored them in a freezer for up to one week . A disposal company then picked up the bodies and took them to a landfill（废物埋填地）site.

Before opening Pet Anget Memorial Center, Ellis worked in human funeral homes for 15 years, helping guide families through the end of life process. Her work with pets, though, is unusual. Only a handful of animal funeral homes exist, most of which Ellis said she helped get started.

Honoring dead pets and honoring people are similar in many ways. The 1,200 square –foot memorial center, located outside of Indianapolis, offer a full line of memorial items . The lowest priced package starts at $ 230  and includes pick-up , as well as a keepsake（纪念品）paw print. Friends, family and surviving pets often accompany grieving owners.

The atmosphere is different from a human funeral home, where people stay their distance to give the grieving family privacy. At the center , pet owners mourn together . Often times , if two visitations are going on, the families will share stores about their dead loved ones. It’s a very good healing experience.

63．What made Coleen Ellis have the idea of a pet funeral home?

A．Her dream to become famous in the USA

B．The cruel way of dealing with dead pet animal

C．Her determination to change her job

D．Her wish to make friends with pet owners

64．What do human funeral homes and animal funeral homes have in common ?

a. They both have a memorial center.

b. They both provide memorial items.

c. They have the same atmosphere.

d. In both places grieving people are kept company by their friends

A．a.b.c               B．a. c. d.                    C． b. c. d.           D．a.b.d.

65．The underlined word“visitations ”in the last paragraph refer to “     ”.

A．animal funerals                     B．places of funerals

C．pet owners                            D．sad stories

66．What is the passage mainly about ?

A．Coleen Ellis’ life                  B．Human funeral homes.

C．Veterinarians and animals      D．Animal funeral homes

刮板流量计按其原理属于（）

A、速度式流量计

B、差压式流量计

C、容积式流量计

D、质量流量计

系统置换的目的是为了驱出设备内的空气，防止空气与原料气混合发生爆炸。