6+6+6改写成乘法算式是[ ]
A.3×6
B.6×6
答案:A
Who is going to London
A.Mary.
B.Susan and Mary.
C.Susan.
D.Neither Susan nor Mary.
扫描仪:显示器( )
A.电话:来电显示屏
B.眼睛:嘴巴
C.能量:热量
D.投资:消费