下列句子中没有通假字的一项是（     ）

28.2009年3月5日上午,十一届全国人大二次会议政府工作报告中指出“财政收入6.13万亿元，增长19.5%”。我国财政收入的增幅较大，主要是因为经济快速增长，经济效益提高。这表明  
①财政收入主要受经济发展水平的制约 
②只有大力增加社会财富总量，才能保证国家财政收入的持续增长  
③财政收入对经济发展水平的影响是基础性的     
④分配政策影响财政收入的增加

根据对话内容，从方框中选择恰当的选项补全对话，其中有两项多余。A：Hello, Sean．
B：Hi, Peter． ____
A：No, I don't． ____
B：She's Tracy．She is my sister's friend．
A： ____
B：Yes, my sister always tells me her things (事情)．I even(甚至)know her eating habits．
A：Really? ____
B：She likes milk and eggs for breakfast．She likes vegetables for lunch and fruit for dinner．
A：I think she eats well．
B：Yes, and she always plays tennis. We must learn from(向……学习) her. ____
A：OK. Let's meet at 5：00．

A．Who is she? B．What are they? C．Do you know her? D．Is the girl your sister's friend? E．The girl's eating habits are very good． F．What about playing tennis after school? G．Do you know the girl in green in Class Four?

     Bamboo (竹子) is one of nature's (自然) most surprising plants. Many people call this plant a tree, but it is a kind of grass.
Like other kinds of grass, a bamboo plant may be cut very low to the ground, but it will grow back very quickly. A Japanese scientist reported one bamboo plant which grew 1. 5 metres(4 feet) in 24 hours! Bamboo grows almost everywhere in the world except Europe. There are more than 1, 000 kinds of bamboo.
     Not all bamboo looks the same. Some bamboo plants are very thin. They may only grow to be a few centimetres wide while others may grow to more than 30 centimetres (1 foot) across. This plant also comes in different colours, from yellow to black to green.
Bamboo has been used to make many things such as hats and kitchen tools( 厨房用具). Because it is strong, bamboo is also used to build buildings.
      Many Asian countries have used bamboo for hundreds of years. They often use bamboo for buildings and supporting (支撑) new buildings and bridges while they are being built.
      In Africa, poor farmers are taught how to find water using bamboo. These African countries need cheap way to find water because they have no money, and their fields often die from no rain and no water. Bamboo pipes( 管子) help poor farmers bring water to their thirsty fields without spending a lot of money.

已知数列{a_n}中，a₁=﹣1，a_n+1=2a_n+3n﹣1（n∈N^*），则其前n项和S_n=____．