男性分泌液作用

名词解释“疾病的三级预防” The monitor turned off the light_____ he left the classroomA.since B.until C.while D.as 选什么?A.since B.until C.while D.as 选什么？ The monitor turned off the light as he left the classroom为什么用as单选题，但是题目选项中还有while,为什么不能用while呢 有明显的语法什么错误用while吗 36个人坐九条船过河,每条必须是单数,怎样坐 36个人座九条船过河,每条必须是单数,每条船人数不一定相等 If you have questions ,you can ____your hands.A:riseB:raiseC:rise up D:raise up.求原因 有36只羊要过河.总共有七条船.每条船只能坐单数的羊.问题是每条船坐多少只羊. 36个人乘9条船,每支船上人数必须是奇数,问怎么坐啊? 填空:How long has Mr.Black been t_______in this school? how long has Jim been at this school?回答为什么要用since 3 years ago不用3 years ago?how long不是提问一段时间吗? this is my f__ letter to you.i would like to tell you s___ about me.i am a schoolgirl. why is ____ you are so late for the class?1.it that 2.that it 3.it 4.that 急 My Opinion on Having Lessons at Weekends 70字左右 看一下有没有语法错 帮我加一句结尾 谢It is true that having lessons at weekends is a good idea to improve our study,but I take it for granted that it is an unwise choice that ha We are talk for the weekends.（改错） How long has this shop(）?Abe openB been open C opened Dbeen opened 紧急求助英语,How long has this shopHow long has this shop________________?A.been open B.been opened请问大侠们选那个答案,请给出原因. Now let me tell you somethings__the life in 2080. How long has it been since this company was established?since this company was established?是表语从句? consent to后面接什么 to be+Location是什么结构? 1、起初鲁迅认为范爱农是怎样一个人?原因是什么? 肩关节的环转运动和哪些肌肉有关 描述肩关节屈伸收展个由什么肌肉参与 most of us ride bikes to go school 还是most of us ride bikes to school 中文翻西语有谁能帮我翻译一下:《百年孤独》1967年被称为拉丁美洲魔幻现实主义的代表作.其作者是加尔列尔•加西亚•马尔克斯.智利诗人聂鲁达曾称赞他是“塞万提斯之后最伟大的 西语翻中文LISTADO DE GRADOS A IMPLANTAR EN EL CURSO 2010-20111.Graduado o Graduada en Turismo2.Graduado o Graduada en Educación Infantil3.Graduado o Graduada en Educación Primaria4.Graduado o Graduada en Ingeniería Geomática y Topográfica5. 范爱农 鲁迅对范爱农深刻印象的事和年 九宫格中,第一行三个数分别是7、2、8.第二行3、6、6.第三行5、4、?.请问“?”是什么数 is worng there is love in the heart not solitary Heart is loving you,say not export 英语翻译原句：It is important to be well informed about things This is what you choose in