:一杯水,第一次喝去它的一半,然后补上喝去的1/2。第二次喝去现在的一半,然后又补上这次喝去的1/2。照这样,第五次补完后,杯内的水是原来的几分之几?()
A.243/1024 B.81/256 C.27/64 D.9/16
第1题:
第2题:
第3题:
“再过几天我会邀他们去喝两杯”最贴的译文是___________.
A.I will invite them for a drinking in a few days
B.I will invite them to a drink in a few days
C.I will invite them for a drink in a few days.
D.I will invite them to a drinking in a few days.
第4题:
第5题: