题目

下列方程变形中，正确的是() A . 方程3x－2＝2x＋1，移项，得3x+2x＝1—2 B . 方程3－x＝2－5(x－1)，去括号，得3－x＝2－5x－5 C . 方程3t＝2，未知数系数化为1，得t＝ D . 方程 -2x-4x=5-9，合并同类项，得-6x=-4 答案：DProject Hope is a social service program to help poor students. It started on October 30th, 1989. It aims to bring schools into poor areas of China, and to help poor families afford an education for their children.     In the past sixteen years, Project Hope has raised about 3 billion yuan from people at home and abroad. It has paid for the education of 2.5 million poor students and sent 2.3 million students to high schools. Minmin comes from a poor family. She has received help from Project Hope. Without the help of project Hope, she couldn’t go on her studies. Project Hope changes her life. She has been a college student for two years. With the money, Project Hope has built thousands of schools and libraries and trained 2300 teachers. But 40 million children from poor families still need help, so Project Hope still has a lot of work to do. 1. Project Hope is a social service program to _______________. A. help homeless people          B. help poor students                 C. help disable children 2.Project Hope started ___________. A. in 1998                B. 14 years ago                      C. in the past sixteen years 3. Minmin has been a college student with the help of ___________. A. Project Hope                   B. her classmates                 C. her teachers 4.Which of the following is TRUE according to the passage? A. Project Hope has raised money to build ring roads. B. Project Hope has raised money from Home and abroad. C. Project Hope has trained 2.5 million teachers. 5.The writer wrote this article to ______________. A. tell us what Project Hope does B. tell us how poor China is    C. raise money