【单选题】若用 8 位 0,1 表示一个二进制数, 其中1位即最高位为符号位, 其余7位为数值位。十进制数-18的原码、反码和补码表示,正确的是________。
A.
10010010,01101101,01101110
B.
10010010,11101110,11101101
C.
10010010,11101101,11101110
D.
00010010,01101101,01101110
【单选题】To Helen, the reply of her friend showed that her friend ________.
A.
was impatient to answer her
B.
didn't appreciate her blessed sight
C.
paid more attention to the sounds in the woods
D.
was unhappy to be tested now and then
【判断题】Helen showed disbelief when her friend said she had seen nothing particular duringa long walk in the woods.
【判断题】Helen showed disbelief when her friend said she had seen nothing particular during a long walk in the woods.
【判断题】Helen Keller showed her disbelief when her friend said that she had seen nothing particular in the woods.
【简答题】51~52 题共用选项: 第 51 题 女性不应从事的体力劳动
【单选题】假设已有定义 ”const char *name = ”chen”;”, 下面语句中错误的是( )。
【简答题】若用5位0,1表示一个二进制数,其中 1位即最高位为符号位,其余 4位为数值位。 (1)若要进行11 - 4的操作,可转换为 11 + (-4)的操作,采用补码进行运算,下列运算式及结果正确的是________。 (A) 0 1011 + 1 0100 = 1 1111; (B) 0 1011 + 1 0100 = 0 0111; (C) 0 1011 + 1 1100 = 0 0111; (D)...
【单选题】若用 8 位 0 , 1 表示一个二进制数,其中 1 位即最高位为符号位,其余 7 位为数值位。 十进制数(+14)的原码、反码和补码表示,正确的是 ______ 。
A.
00001110 , 01110001 , 01110010
B.
00001110 , 01110001 , 01110001
C.
00001110 , 00001110 , 00001110
D.
10001110 , 11110010 , 11110001