下面是一组鉴别生物体内几种有机物的实验，其中的数字分别代表

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问题选择题

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A．①葡萄糖②苏丹Ⅲ③紫色④甲基绿

B．①蔗糖②苏丹Ⅳ③紫红色④碘液

C．①还原糖②苏丹Ⅳ③蓝紫色④硫酸铜

D．①果糖②苏丹Ⅳ③紫色④甲基绿

答案

答案：D

填空题

根据语篇情景，用恰当的短语或句子填空，使之意思完整。

Tony loved basketball. After a car accident, his 1. ______ were broken. At first he was very sad. He

was sent to a rehab center (康复中心). He met Sunny Chen. Chen used to be a coach. His legs were hurt

badly in a skating accident. Though he couldn't move his legs, Sunny became a coach of a basketball team

called the Suns. It was a on-wheelchair basketball team, because everybody on the team played from a

2. ______. Sunny invited Tony to join the game. After becoming a part of the Suns,Tony improved

quickly. 3. _____ was like medicine, Tony was much better than before. When Tony became sad or angry,

Sunny always helps him. Sunny said to Tony "When you keep your face to the sun, the shadows fall

behind."

1.___________

2.___________

3.___________

问答题简答题

折叠门的特点？