stockings+and+tights

宗耍殷3082stockings的读法,需音标我主要是问s,是念/z/还是念/s/ -
何响怡15824134997 ______[答案] stockings [stɔkiŋz]长袜(复数)

宗耍殷3082People usually put stockings in their living rooms to hold gifts.是什么意思 -
何响怡15824134997 ______ 人们通常在卧室放上长筒袜来装礼物.

宗耍殷3082求证:用叠乘法证明 等差数列an=a1+(n - 1)d -
何响怡15824134997 ______ 叠加法吧..a2=a1+d a3=a2+d a4=a3+d …… an=a(n-1)+d 所以an=a1+d+d+……+d=a1+(n-1)d(注意角标)

宗耍殷3082已知数列{an}中,a1=3,a(n+1)=3 - (1/an - 1)求证{1/(an - 2)}是等差数列 -
何响怡15824134997 ______ a(n+1)-2=1-[1/(an-1)]=[an-2]/[an-1] 两边去倒数,得1/[a(n+1)-2]=[an-1] / [an-2] 再把右边的式子分裂 得到=1+1/[an-2] 整理得到1/[a(n+1)-2] - 1/[an-2]=1 即 等差数列

宗耍殷3082袜子的英语写法英语字母拼写 -
何响怡15824134997 ______[答案] 袜子 [wà zi] socks; stockings; hose 例句:a pair of socks; a pair of stockings 一双袜子

宗耍殷3082主谓一致怎么用,用法是什么?说得越多越好, -
何响怡15824134997 ______[答案] 用作主语的名词词组中心词和谓语动词在单、复数形式上的一致,就是语法一致.也就是说,如果名词中心词是单数,动词用... 这样的一致关系就是意义一致.例如: Democratic government gradually take the place of an all-powerful monarchy. A ...

宗耍殷3082等差数列an中,sn为数列an的前n项和,a12=10,则s23 -
何响怡15824134997 ______ 解:由题可得,a12=a1+11d=10,sn=na1+(n(n-1)/2)d 所以S23=23a1+(23(23-1)/2)d=23(a1+11d)=23*10=230

宗耍殷3082初中宾语从句练习题及答案 -
何响怡15824134997 ______[答案] I.从下列A、B、C、D中选择一个正确选项填空. 1. I don't know _________ he will come tomorrow. _________ he comes, I'll ... how old the two players are 9. The small children don't know _________. A. what is their stockings in B. what is in their ...

宗耍殷3082分析:The small children don't know what is in their stockings.这句当时头脑一热我选对了……但是还是觉得很好奇,宾语从句的从句不是用陈述语序么,这句... -
何响怡15824134997 ______[答案] 没有问题,what是充当从句的主语,当然放在最前面,后面跟系动词is,正常的陈述语序.

宗耍殷3082there were no stockings or sock on her blue - veined legs,是什么意思 -
何响怡15824134997 ______[答案] there were no stockings or sock on her blue-veined legs 没有长袜,或袜子在她的蓝纹腿 尊敬的麻友, 有困难,找百度 芝麻一帮一,问题全无一 万千芝麻是一家,团结合作靠大家