【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。 的原码、反码和补码表示,正确的是( )。
A.
10010010 , 11101101 , 11101110
B.
00010010 , 01101101 , 01101110
C.
10010010 , 11101110 , 11101101
D.
10010010 , 01101101 , 01101110
【单选题】When the temperature drops to 0℃, ice ________ on the surface of water. [ ]
【简答题】[A]earth [B]grass [C]water [D]ice
【单选题】The detective was greeted with an unpleasant smell of ______ air when he stepped into the long locked room.
【单选题】He stepped gingerly into the ramshackle old house.
【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。 的原码、反码和补码表示,正确的是
A.
10010010,01101101,01101110
B.
10010010,11101101,11101110
C.
10010010,11101110,11101101
D.
00010010,01101101,01101110
【简答题】A water B rain C stone D ice
【单选题】The boy ______ when he said that he ______ the eggs ______ by the hen in the closet before he ______ down to have a rest.
A.
was lying, had laid, laid, lay
B.
had laid, lay, laid, was lying
C.
lay, was lying, lain, lay
【多选题】三相变压器连接组别为YNd11表示( )