题目内容

When people have new year's parties, they usually keep silent to show respect to others.

A. 对
B. 错

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Many Americans usually spend the first day of the New Year happily outside their homes.

A. 对
B. 错

Different peoples have New Year's celebrations in different ways.

A. 对
B. 错

下列四个数中与十进制数(52)10相等的数是（）。

A. (101111)2
B．(111101)2
C．(1010010)8421BCD
D．以上均不正确

以下表达式中符合逻辑运算法则的是（）。

A．A+1=1
B．1+1=10
C．0<1
D．C·C=C2