第12题: [单项选择]Why was Alfred Adler poor at arithmetic as a boy A. Because his teacher had no confidence in herself. B. Because his parents expected too much of him. C. Because he lost his self-confidence. D. Because he was mentally disordered. 参考答案:C 答案解析:[解析]推理判断题。为了说明文章首句以及第二段第一句中所说明的道理,在第四段中,作者举了阿德勒少年时的亲身经历。小时候,阿德勒算术不好(got off to a poor start in arith
A. 00000001 B. 10000001 C. 11111110 D. 11111111 参考答案:D 答案解析:数的存储是以二进制方式进行的,一般将二进制数的最高位称为符号位,0为正,1为负;其余的为数据位。已知原码11001100最高位是1,取符号为负(一),数据位(1001100)的十进制形式为76,因此其