生育酚乙酸酯的作用

who are yhey?they are doctors 哪个错了 who are they?如何回答及意思 Terrisa didn`t feel very weel yesterday.(同义句改写）Terrisa———— ———— yesterday. 自我激励的话,老师让我们写的,20字,2句以上,现实点 the,didn’t,i,party,very,feel,ofter,well 连词成句看清楚!某个单词和上午不同!最好写下中文.写了中文+5分! 如何自我激励呢 the,didn’t,i,party,very,feel,often,well 连词成句 每日一醒 自我激励语言 19天 After the party I didn't feel very 自我激励的话 怎样自我激励 Must I do the cleaning at once?No,you___.You can have a rest first.A.mustn"t B.needn"t C.can"t （ ）－Must I do my homework at once?A.needn't B.mustn't C.can't（ ）－Must I do my homework at once?A.needn't B.mustn't C.can't D.may not At first,they got _____ about something and _____ _____ _____Chinese at last刚开始他们对一些事感到兴奋,最后却以说中文结束. 地球上正午时刻日影永远朝南的地区是a北回归线以北、北极圈以南地区b南回归线以南、南极圈以北地区c南、北回归线之间的地区d北极圈以内的地区 请问问什麽不能说come to this way,please.这是一道改错题.come this way,please.可是我不知道为什么要去掉 to. 在地球上,一年中每日正午日影总是朝南的地方为什么是南回归线以南的地方 完型填空Now _ this way,please.A.go B.come C.went D.coming 求知识点,语法,重点短语Would you please come in?Permit me to lead the way,sir _____ you like to come to tea with us? 概率论 5粒围棋子中有2粒黑子,3粒白子,从这5粒棋子中随机取出2粒,则恰好有1粒黑子和1粒白子的概率为? The cat killed the rat_______ ate the meat _______lay in the house______Jack built.谁能告诉我为什么是that ,that ,不填呢? A cat came to Jack's house(改为一般疑问句）怎么做?急! 连词成句 cat,on,of,the,the,left,is,house,the(.) 分子遗传学的问题!异源双链体,无效突变,移码突变,颠换,反式作用名词解释.急求谢谢! 分子遗传学有没有前途如题,我想学分子遗传有没有前途? 英语翻译翻译这个~ all things are difficult before they are easy 凡事必先难后易1：before 在这边坐连接词还是什么词?2：为什么使用they 而不是it all things are difficult before they are All things are difficult before they are easy我觉得意思是困难前是容易 也就是先易后难 但英语为什么要翻译成先难后易呢? ----Could you please come to the museum with me this afternoon?----Sorry,I____.I have to take a piano lesson at 2:00 pm.A couldn't B mustn't C can't D needn't 选择 带上理由 This can be very difficult,but could you come with me,please?