左图所示的食物网中除生产者外，哪种生物的灭绝会导致另一种生物随之灭绝（） A．乙 B

Joe, an outgoing girl, is from a rich family. Therefore she can afford almost everything. But Joe’s parents are too busy to spend enough time with her, which makes Joe more than lonely. So, she always goes to WeChat. On WeChat, she can do a lot of things like buying things, reading articles, and making friends with those she either knows or not.

She uses the name Linda on WeChat and has made a lot of friends there. Last year Joe made a foreign friend on WeChat. Her name was Catherine and she lived in Sydney. Catherine once sent a picture of “herself”: a tall, good-looking young woman with big eyes. Catherine and Joe were both interested in rock music and modern dance. So, they liked each other very much.

When Joe’s father told her that he was meeting a client in Sydney this summer, she went with him to give Catherine a surprise for her birthday. When Joe came to Catherine’s house in Sydney, she found that her foreign “girlfriend” was a ten-year-old boy named Jim! What a surprise!

小题1:Joe spends time on WeChat to          .

A．make friends

B．kill time

C．read articles

D．buy things小题2:What is the real name of Joe’s “girlfriend”?

A．Catherine

B．Joe

C．Jim

D．Linda小题3:From this article, we can say          .

A．Everyone uses his real name on WeChat

B．On WeChat, we can only talk with Chinese people.

C．On WeChat, we can talk with Chinese people in Australia.

D．Joe’s father went to Sydney to meet Joe’s friend Catherine.小题4:What’s the best title of the passage?

A．A Sad Girl

B．A Real Surprise

C．A Special Foreigner

D．A Boy Called Jim

为了适应市场客户需求，手机生产商生产多种功能的手机。手机用户购买手机时关注手机功能，说明人们在购买商品时关注： [ ]

A．商品的使用价值

B．商品的价值

C．商品的交换价值

D．商品的价格

检验试验的方法有观察、测量、仪器检查等，其结果记录正确的是（）

A.合格

B.符合要求

C.符合规定

D.xxMPa

某市房地产开发企业建造商品房一幢，建房总支出3000万元，有关费用为：
(1)支付地价款180万元，过户手续费20万元；
(2)土地征用及拆迁补偿费120万元；
(3)前期工程费180万元；
(4)基础设施费200万元；
(5)建筑安装工程费1500万元；
(6)公共配套设施费200万元；
(7)期间费用600万元，其中利息支出500万元(利息能按房地产项目分摊，并有金融机构贷款证明)。其他房地产开发费用扣除比例为5%。
该房地产开发企业将商品房卖出，取得收入6000万元，并按规定缴纳了营业税、城建税、印花税和教育费附加。
要求：计算应缴纳的土地增值税。并简述税前可扣除项目的政策。

在相同飞行速度和迎角情况下，袭面不清洁或前缘结冰的机翼升力（）.

A、大于基本翼型升力

B、等于基本翼型升力

C、小于基本翼型升力

D、不确定