新中国的外交成就

Great changes___(take)place in HK in the past 10 years.RT. AB3是短周期两种元素形成的化合物,已知B原子比A原子多一个电子层,且AB3分子中所有原子满足8电子结构,则正确的是问题补充：A、AB3是三氧化硫B、A是ⅢA族元素C、B原子比A原子多10个电子D、B Great changes __________ in our country since 1978.(take place) 电子数为18的三原子化合物 for the past two years great changes（ ）in our town .（take）应该怎么填 现有A、B、C、D四种短周期非金属元素,他们的原子最外层电子数之和为19.在他们的化合物中,常见化合价均不止一种,但有一种相同的化合价.他们的一些物理常数如下：元素 A B C D原子半径/nm 0. 一根2寸水管接4个水龙头怎么接 需要 那些材料 She says "Last week I bought a bed变为间接引语She says __ __ a BEd the week before Lucy has bought many new clothes last week .Now she needs a larger__. (改错题）Last week she book? she bought the new house last month(同义句） point one's finger at someone take one's point什么意思 要悲伤的英文歌!听着想哭的歌.rt她要出国了,我该怎么办 there is nothing in the box ,_________?反义疑问 there is nothing in the box,_________?的翻译疑问句怎么写 there is nothing but a card in the box,( )there?应填is 还是isn't说明理由 1、The girl readed an interesting story last night.改错题 I read an interesting story ____a magazine last night.atoninunder Barry visited his uncle last week(对his uncle提问）（）（）Barry（）last week? 一质点自原点开始在x轴上运动,初速度大于0,加速度a大于0,当a值不断缩小直至为零时,质点的（ ） A速度不断减小,位移不断减小 B速度不断减小,位移继续增大 C速度不断增大,当a=0时达到最大, 家用调味品的种类有哪些 调味品食盐属于哪一类 如何补充铜元素?快 This is the bike ___ I bought last week填空 请问,this is much equal to the one i bought last week.equal是上等的意思.我觉得这句话的意思是这个比我上周买的那个强多了.可是书上说是“这个比我上周买的那个差多了”.我觉得从字面上看我没错啊 this refrigerator we bought last week is satisfatory This is much inferiror to the one I bought last week 一质点自原点开始在x轴上运动,初速度v0＞0,加速度a＞0.当a值减小至零的过程中,则质点的A.速度不断减小,位移逐渐增大 B.速度和位移都只能逐渐增大到某个定值 C.速度逐渐增大,位移趋近于某 一质点在x轴上运动,初速度v>0,加速度a>0,当a值减小到零,则该质点（ ）为什么“速度逐渐增大,当加速度减少到零时,速度达到最大值”这答案对呢? 以 my family 为题写一篇50个单词左右的作文 以“My Family”为题写一篇作文50个单词