in+sb+s+honor

柴蓓海4156A+B+H2SO4生成Na2SO4+S+H2O中的A,B是? -
茹索都14728567743 ______ 根据质量守恒定律,也就是在化学反应中原子种类和数目守恒的原理,可知A是Na2S,B是NaOH

柴蓓海4156it's +adj+for sb+to do sth与 it's +adj+to do sth+for sb 是否意义一样? -
茹索都14728567743 ______ it's +adj+ for sb +to do sth 对sb来说做~~~是~~~的,这里的sb一般指做这件事情的人,比如it's good for you to take exercises every morning.对你来说,每天锻炼是有好处的. it's +adj+to do sth+for sb 为sb做~~~是~~~~的,这里的sb一般不是做这件事的人,而是只为了谁而做这件事,比如it's unregretful to do it for her.为她做这件事一点也不值得后悔

柴蓓海4156it's+abj+of sb+to do sth
茹索都14728567743 ______ adj是说明sb的品质特点用of sb; 说明to do sth用for sb (说人的用of sb. 说事的用for sb.) It's very nice of you to help me. 你来帮助我,你真是太好了. It's very hard for him to study two languages. 对他来说学两门外语是很难的. 用介词后面的代词作主语,用介词前边的形容词作表语,造个句子.如果道理上通顺用of,不通则用for.如: You are nice. (通顺,所以应用of). He is hard. (人是困难的,不通,因此应用for.)

柴蓓海4156下面程序的输出是 main() { char s[ ]=＂121＂; int k=0, a=0, b=0;...
茹索都14728567743 ______ 主语+谓语+宾语+宾补

柴蓓海4156pbso4还原pb+s+ho2 -
茹索都14728567743 ______[答案] 硫酸根不易被还原,不过Pb2+可以被还原成Pb,另外反应物里没有H元素,产物中不存在H2O. 满意请采纳(手机版点“满意”即可)

柴蓓海4156初二下英语、一、用下列词组造句 1、There be+n复数+介+地点 某处有某处 2、it's +adj+for sb+to do sth对某人而言做某事是怎样的 3、more than 超过 4、... -
茹索都14728567743 ______[答案] There are two desks in the room. It's easy for me to finish the work. He is more than sixty. He started learning English at the age of five. He is able to swim I enjoy reading. My home is far from our school.

柴蓓海4156It's+adj+for+sb+to do sth.的同义句 -
茹索都14728567743 ______ Doing sth is adj for sb.

柴蓓海4156s三角形abc等于二分之一半径(a+b+c) -
茹索都14728567743 ______[答案] 证明:设O为ΔABC的内心, 过O作OD⊥AB于D,OE⊥BC于E,OF⊥AC于F, 则OD=OE=OF=r, 连接OA、OB、OC, 则SΔABC=SΔOAB+SΔOBC+SΔOAC =1/2ra+1/2rb+1/2rc =1/2r(a+b+c).