一台计算机如果使用了（），就可以不用再加入抗干扰交流稳压器了。
A、CPU
B、UPS
C、Modem
D、CD-ROM
参考答案：B
一个人如果错误地评估自己，就有可能走进自信的误区，产生（ ）心理。
A．自负
B．自卑
C．自信
D．自卑和自负
The bread you bought at the supermarket today was at least ______ the bread you bought in the nearby bakery yesterday.
A．as worse as
B．as better than
C．no worse than
D．not better as
