地文景观按成因可分为( )等类型。
A．花岗岩地貌
B．石灰岩地貌
C．火山地貌
D．丹霞地貌
参考答案：C,D
Lisa, could you tell me ________ yesterday?
A．what did the teacher say
B．what the teacher said
C．what will the teacher say
D．what the teacher will say
下列叙述不正确的是( )。
A．命令按钮的默认属性为Caption
B．标签的默认属性为Caption
C．复选框的默认属性为Value
D．滚动条的默认属性为Value
