以下按辅助投影面与地球椭球体的位置关系划分的地图投影有（）。 A.正轴投影 B.切投

某县模范父亲王者成在送儿子王建堂出征之际。赠送的竟是一面“死”字大旗。他在白布中央写了大大的一个“死”字，两边写着：“国难当头，日寇狰狞；国家兴亡，匹夫有责；本欲服役，奈过年龄；幸有吾子，自觉请缨；赠旗一面，时刻防身；伤时拭血，死后裹身；勇往直前，勿忘本分！”对此理解正确的是(　　)

A．体现了甲午战争时期政府发动民众

B．体现了中国人民的爱国热情

C．揭露了日本侵略者的凶狠残暴

D．体现了解放战争时期人民踊跃支前

磁盘存储器的数据存取速度与下列哪一组性能参数有关 ( )。

A．平均等待时间，磁盘旋转速度，数据传输速率

B．平均寻道时间，平均等待时间，数据传输速率

C．数据传输速率，磁盘存储密度，平均等待时间

D．磁盘存储器容量，数据传输速率，平均等待时间

A  rainfores（雨林）is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below 16℃.Rainforests have a great effect on the world environment because they can take in（吸收） heat from the sun and adjust （调节）the climate. Without the forest cover, these areas would reflect more heat into the atmosphere，warming the rest of the world .Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters（灾害） all over the world.

In the past hundred years, humans have begun destroying rainforests in search of three major resources (资源): land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example，a lot of carbon dioxide(二氧化碳)in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit（受益）.

There are two main reasons for this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run （长远看）it actually reduces the world’ s wood supply.

Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in （在于）the world’s shrinking rainforests.

小题1:.．Rainforests can help to adjust the climate because they________.

A．reflect（反射） more heat into the atmosphere

B．bring about high rainfall throughout the world

C．rarely cause the temperature to drop lower than 16℃

D．reduce the effect of heat from the sun on the earth小题2:.．What does the word “this” underlined in the third paragraph refer to?

A．We will lose much more than we can gain.

B．Humans have begun destroying rainforests.

C．People have a strong desire for resources.

D．Much carbon dioxide comes from burning rainforests.小题3:.What might be the best title for the text?

A．How to Save Rainforests

B．How to Protect Nature

C．Rainforests and the Environment

D．Rainforests and Medical Development

简要说明个人所得税法的征税对象。

由于顾客的需求不同，所以，也需要向顾客介绍（），从顾客购买目的以及要求上满足其需要并引导顾客选购其适用的商品。

A、商品特点以及商品型号

B、商品特点以及商品性能

C、商品性能以及商品规格

D、商品性能以及商品类型