1. mother&& 2. brother&&3. how funny&&4. fourteen&&5. student&&6. goodbye&&7. eighteen&&8. grandpa&&9. seventeen&&10. twenty
请在这里输入关键词：
科目：小学英语
来源：剑桥少儿英语天天练一级上册
Listen and choose(听录音，选一选)
(1)Hello, my name is (Bill, Dan).
I am a (boy, girl).
I am (nine, eight) years old.
(2)Hi, Kitty is my (cat, dog).
It is (two, four) years old.
We are good (friends, pupils).
科目：小学英语
来源：剑桥少儿英语天天练一级上册
Listen and write down the word and its plural form(请听录音，写出你听到的单词并写出它的复数形式)
(1)________ ________　　(2)________ ________
(3)________ ________　　(4)________ ________
科目：小学英语
来源：剑桥少儿英语　　天天练一级下册
Listen and fill in the blanks（听录音，填空）
(1)Simon, ________ ________, please. Please ________ your answer on the blackboard. Thank you and ________ ________.
(2)Hello, everyone! Please ________ ________ the blackboard.
(3)Can I ________ some lemonade? Yes, you can.
科目：小学英语
来源：剑桥少儿英语天天练二级下册
Listen and choose the sentence which has the same meaning as the sentence you hear
A．The trousers aren't ours.
B．The trousers are mine.
C．The trousers are on a clothes line.
D．The trousers are fine.
A．Its name is Korea.
B．It's a map of Korea.
C．His mum is in Korea.
D．His mother is from Korea.
A．Her hat looks like my hat.
B．Her cat looks like my cat.
C．Her hat looks like my cat.
D．Her cat looks like my hat.
A．He has a little bread in his basket.
B．He doesn't have any bread.
C．He has a lot of bread.
D．He has a little bread.
科目：小学英语
来源：期末题
题型：听力题
Listen&and&fill&in&the&blanks. 听录音，把句子补充完整。1.&I&like&to&eat&&&&&&&&&&&&&& &&&&&&&&&&&&&& &and&&&&&&&&&&&&&& .2.&She&is&wearing&a&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& .3.&I&play&&&&&&&&&&&&&&&with&my&&&&&&&&&&&&&& .4.&&&&&&&&&&&&&&&and&&&&&&&&&&&&&&is&twenty-four.5.&The&computer&is&&&&&&&&&&&&&&&the&radio.
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求解 (A/P,i,n)=(A/F,i,n)+i 或 (A/F,i,n)= (A/P,i,n)-i
求解 (A/P,i,n)=(A/F,i,n)+i 或 (A/F,i,n)= (A/P,i,n)-i20分
相关说明：
我已经知道怎么的了。（A/P，i，n）为现值等额系数详细的应该是i*(1+i)^n/(1+i)^n-1。而（A/F,i,n)为终值等额系数，详细的应该是i/(1+i)^n-1。(A/P,i,n)=(A/F,i,n)+i 即(A/P,i,n)-(A/F,i,n)=i。两个相减，分子相减i*(1+i)^n-i=i*[(1+i)^n-1].除以分母(1+i)^n-1即等于i。也就是证明上面两式成立。
复利终值的计算公式为：F=P·(1+i)n(次方) 式中(1+i)n简称“复利终值系数”，记作(F/P,i，n)。 复利现值与复利终值互为逆运算，其计算公式为：P=F·(1+i) -n(次方) 式中(1+i) -n简称“复利现值系数”，记作(P/F,i，n)。年金终值的计算年金终值是指在一定的时期内，每隔相同的时间收入或支出一笔相等金额，在到期时按复利计算的本利和。其计算公式为:F＝A[(1+i)n-1]/i=A(贰攻蹿纪讷慌寸苇丹俩F/A,i,n)式中的[(1+i)n-1]/i称为年金终值系数；一般表示为(F/A,i,n）。年金现值的计算年金现值是指将在一定时期内按相同时间间隔在每期期末收入或支付的相等金额折算到第一期初的现值之和。其计算公式为:P=A[(1+i)n-1]/[i(1+i)n]=A(P/A,i,n)式中的[(1+i)n-1]/[i(1+i)n]称为年金现值系数，一般表示为（P／A,i,n)
(A/P,i,n)=(A/F,i,n)+i还有(A／F，i，n)=(A／P，i，n)-i式中(1贰攻蹿纪讷慌寸苇丹俩+i)n简称“复利终值系数”，记作(F/P,i，n)。 复利现值与复利 ..
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