— What does the monster look like?

— The tongue of the monster can be extended ______ of its body. [       ]

A. more than twice the length

B. twice more than the length

C. more than the length twice

D. more twice than the length

在Visual FoxPro中参数传递的方式有两种,一种是按值传递,另一种是按引用传递,将参数设置为按引用传递的语句是：SET UDFPARMS【 】