第17题: [单项选择]Flowers and Yeo have started a programme A. to find ways to prevent water pollution. B. to identify genes that promote growth in salty soil. C. to breed rice plants that taste salty. D. to find ways to remove excessive salt from soil. 参考答案:B
第27题: [单项选择]下列关于报表功能的叙述不正确的是( )。 A. 23 47 B. 10 36 C. 22 44 D. 24 50 参考答案:A 答案解析:Invert(By Val xstr As String,ystr As String)的作用是将参数xstr的字符逆序处理,然后赋值给ystr,而ystr是按地址引用的,可以直接返回处理结果。