英语翻译1、Didyouknow?Inthedecimalnumbersystem(base10)tendifferentdigits,0to9,areusedtowriteallthenumbers.Inthebinarynumbersystem(base2)twodifferentdigitsareused,i.e.0and1.Whichoneofthefollowingnumbersisnot

Question

英语翻译
1、Did you know?In the decimal number system (base 10) ten different digits,0 to 9,are used to write all the numbers.In the binary number system (base 2) two different digits are used,i.e.0 and 1.
Which one of the following numbers is not a valid number in the
octal number system (base 8)?
A) 128 B) 127 C) 126 D) 125 E) 124
3、The number of diagonals that can be drawn in a regular polygon with
twenty sides (icosagon) is_____.
4、If a and b are integers,10?3=1,152?7=3,and then 379?6 is equal to_____.
5、Two numbers are in the ratio 2 :3.When 4 is added to each number the ratio changes to 5 :7.
The sum of the two original numbers is____.
6、The greatest number of Mondays which can occur in 45 consecutive
days is____
7、Saul plays a video game in which he scores 4 for a hit and lost 6 for a miss.After 20 rounds his score is 30.The number of times he has missed is____.
8、Three girls A,B and C run in a 100 m race.When A finishes,B is 10 m
behind A and when B finishes C is 20 m behind B.How far in metres was
C from A when A finished?
(Let’s assume all the athletes run at a constant speed)
9、The areas of the faces of a rectangulabox are 84 cm2 ,70 cm2and 30 cm2.The volume of the box in cm3 is____.
10、You have 3 weights:1 kg,3 kg and 9 kg as well as an equal arm balance,as shown.How many different weight objects can you weigh with these three?
[Remember the weights may be placed on either side]

Answer 1

这也高分．．．
1、你知道吗?在十进制里的十个数字,0 到 9,就可以用来些所有的数字． 在二进制里面,只用到两个数字,0和1．
下面哪一个数字不会出现在八进制数字系统里面：
A) 128 B) 127 C) 126 D) 125 E) 124
3、在正二十边形里面有_____条对角线.
4、如果a和b是整数,10?3=1,152?7=3,那么379?6 等于_____.
5、两个数的比是2 :3.当每个数都加4后,比变成5 :7.
原来的两个数相加是____.
6、在连续的45天中,星期一最多出现____次.
7、Saul 玩一个游戏.游戏中击中一次得4分,没有击中的话减6分.20次后他的分数是30.他总共没有击中____次.
8 三个女孩 A,B 和 C 跑100米的比赛.当A到达终点时,B 在A的10米之后.当B到达终点时,C 在B的20米之后.当A结束时,C差她多远?
(假设所有人速度一样)
9、一个长方形盒子的面积是 84 平方厘米 ,70 平方厘米和30 平方厘米.它的体积是____平方厘米.
10、有三个砝码:1 kg,3 kg and 9 kg 和一个天平,如图所示.用这三个砝码可以称多少种不同的重量?
[记住砝码可以放在天平的任意一边]