第26题: [单项选择]The politician will never again enjoy a reputation as a national hero as it ______ before the scandal was exposed. A. could B. did C. would D. was 参考答案:B 答案解析:习惯用法题。从意义来看,空格应填enjoyed,为避免重复,可用助动词did替代,故[B]为答案。
第27题: [单项选择]十进制数111转换成二进制整数是 A. 01100101 B. 01101001 C. 01100111 D. 01101111 参考答案:D 答案解析:[解析] 十进制整数转二进制的方法是除2取余法。“除2取余法”:将十进制数除以2得一商数和一余数(111÷2得商为为55,余为1)。再用商除以2(55÷2得商为27,余为1)……以此类推。直到商为0,