对称的古都是哪个城市

想问一下这个鸟是什么鸟 As i look back on it now ,i realize it was kind of silly of me to be so worried when Daddy was求以这句话开头的完形填空全文及答案 英语翻译1.当我父亲回想往日时光时,他总是说我们应该珍惜（value）已经拥有的东西.（look back on）2.他来帮助我,这对我来说是个极大的鼓励.（动名词作主语） ___in the heavy rain ,the girl got wet thorugh and trembled with cold in this summer nightA Having caught B Catching C Caught DTo catch 单独的H是不是化学式啊?RT, IS WA HE WORKED HARD THAT HE SUCCESSEDIt was ( ) he worked hard that he succeeded.A because B sinceC asD for KOH的作用是什么?对二氧化碳和氧气会有怎样的反应. The boy was a_____ to sing English songs at the age of 5. KOH 为什么会有透明作用做生物标本用KOH作清洗剂,以使标本透明.为什么KOH会有此功能? He failed his exam,_ proves that he wasn't working hard ebough.A.itB.what C.which D.that He failed his exam,_____ proves that he wasn't working hard enough.A.what B.of which C.which D.this 1、淋巴因子的本质是什么?2、蛋白质工程是替换基因还是替换氨基酸? he failed in this exam ,_proves that he was not working hard enough.a.that b.it c.what d.which 右图表示基因控制蛋白质的过程.若最后合成的多肽链中共有120个氨基酸,则基因中至少有（ ）个核苷酸.答案是720为什么丫 He wasn't ______so he failed the exam.A.enough careful B.careful enoygh C.enough carefully D.carefully enough请帮我分析下每个选项, 帮帮忙,高一物理题.明天就要交啦,谢谢啦! 氢氧化铁是弱碱吗?ClO-,MnO4-,NO3-体现氧化性时都一定能够要有H+才行吗? 一个等腰梯形的高为4m,其周长是42m,面积是48平方米,梯形的腰是多少米?请列式解答. 1.在有H＋存在时,MnO4－、ClO－的氧化性会增强,那没有H＋存在时ClO－MnO4－氧化性如何?还能氧化S2－、Br－、I－、SO32－、Fe2+吗?2.ClO－在酸性和碱性条件下,都有强氧化性.为什么呢?还有MnO4－也 Fe3+与ClO-氧化性强弱给出证明的过程. 其中核糖核苷酸的五碳糖怎么没有五个碳原子? 求翻译,要求读得通,能理解文章意思（不要翻译器的直接发过来）UNIT 2 I’m not sure whether a “generation” exists, but if it does ,I hope I’m still standing on the youth’s of the gap.I may be 50 and then some, but he found the street much___这里为什么填crowded much是形容词唉 不能说用adj修饰adj吧.其他的选项：crowd crowdingcrowded和crowdedly 都是adj 为什么填crowded不填crowdedly？crowded和crowdedly 都是adj 为什么填crowded on entering the workshop he found many students worked there 请问这里为什么用ON 和 ON在这里是什么意 天空的蔚蓝,爱上了大地的碧绿,他们之间的微风叹了声‘哎!’ 意思是什么 蔚蓝天空是不是四字词 成语蔚蓝天空哪个字错了 一条公路上每隔100千米有一个仓库,共有5个.一号有20吨,2号有30吨,5号有40吨,其余两个是空的现在想把所有的货物存在一个仓库里,如果每吨货物运输费为1千米需0.5元运费,那往哪个仓库运最省 一通三防指的是什么 捷一通软件是什么 三龙一通是什么意思 You have been working hard to learn English.Do you know American kids are trying to learn Chinese?More than 60,000 American students now study Chinese.      “Because of China's fast development,Chinese has become