第11题: [单项选择]已知代数式eXSin(30°)2x/(x+y)Lnx,则正确的Visual Basic表达式为( )。 A. E^*Sin(30*3.14/180)*2*X/X+Y*Log(X) B. Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X) C. Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*Log(x) D. Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(x) 参考答案:C 答案解析:[解析] “Exp”函数功能是计算e(e≈2.71828)的某次方,其格式为是Exp(number);“Sin”函数指定参数的正弦值,它的参数是表示以弧度为单位的角的Double型数据;“Log”函数
A. faster but more expensive than buses B.
both ancient and modem C. humorous and hospitable
D. cheap and efficient E. traditional and famous
F. clever and hardworking
Coaches in the UK are ______. 参考答案:A 答案解析:[解析] Coaches in the UK are faster but more expensive than buses. 在英国长途汽车比公共汽车更快捷,但是更贵。