单项选择题

请给出这段代码的运行结果（）;};

A.11
B.12
C.21
D.22

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单项选择题

If you keep working like this, you helth will _______ under the pressure of work.brek upB．

br34. If you keep working like this, you helth will _______ under the pressure of work.brek up B．brek down C．brek in D．brek outA．break upB．break downC．break inD．break out

设计算机字长为8位,采用二进制补码计算: 107-3AH=？

答案： [107]补码=01101011 [-3A]补码=11000110 00110001