在阶级社会中,真理的根本属性是
A.阶级性
B.客观性
C.主观性
D.相对性
答案:B
The police ______ his address and phone number in order to do further investigation .
A.took off
B.took down
C.took in
D.took over
超市收款台检查货物的条形码设备,属于对计算机系统的()。
A.输入设备
B.输出设备
C.显示设备
D.打印设备