warn+sb+about
鱼琴若1295It's+adj.+of sb+to do sth是什么意思 -
辕超成17788904197 ______ 你好, It's+adj.+of sb+to do sth 是一种固定句型 表示:某人做某事怎么样 例如: It's kind of you to help me . 你能帮助我真是太好了. It's silly of him not to forgive others for their mistakes. 他不肯原谅别人的过错真是太傻了.
鱼琴若1295It's+形容词+for sb+动词不定式,是什么语法结构??? -
辕超成17788904197 ______ it是形容词主语,动词不定式是真正的主语,故也可写成:动词不定式 +BE +形容词+for sb . 如It 's important for us to learn English well .= To learn English well is very important for us .
鱼琴若1295supposed sb+(to be)+adj./n是什么意思 -
辕超成17788904197 ______ 1)suppose sb to do 认为(期望,希望)某人做某事I suppose you to clean the room.2)suppose sb +to be adj/n. 猜测某人怎样 I suppose you to be twenty.我猜你二十岁.
鱼琴若1295已知非负数a,b,c满足条件a+b=7,c - a=5,设S=a+b+c的最大值为m,最小值为n,则m - n的值为------ -
辕超成17788904197 ______ ∵a,b,c为非负数;∴S=a+b+c≥0;又∵c-a=5;∴c=a+5;∴c≥5;∵a+b=7;∴S=a+b+c=7+c;又∵c≥5;∴c=5时S最小,即S最小=12;∴n=12;∵a+b=7;∴a≤7;∴S=a+b+c=7+c=7+a+5=12+a;∴a=7时S最大,即S最大=19;∴m=19;∴m-n=19-12=7.
鱼琴若1295“水仙花数”是指一个三位数,其各位数的立方和等于该数,如153=13+53+33.编写程序输出所有的“水仙花数 -
辕超成17788904197 ______ #include<stdio.h> void main() { int a,b,c,sum; for(a=0;a<10;a++) { for(b=a+1;b<10;b++) { for(c=b+1;c<10;c++) { sum=a*a*a+b*b*b+c*c*c; if(sum>99) { if(sum<1000) printf("%d ",sum); } } } } }
鱼琴若1295it's+abj+of sb+to do sth
辕超成17788904197 ______ 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.)
鱼琴若1295设三角形ABC的三条边为abc简化|a - b - c|+|b - c - a|+|c - a - b| -
辕超成17788904197 ______ 结果是:a+b+c 过程如下:三角形的三条边必须满足:a+b>c>a-b b+c>a>b-c a+c>b>a-c 所以:|a-b-c|+|b-c-a|+|c-a-b|=(b+c)-a+(a+c)-b+(a+b)-c=a+b+c
鱼琴若1295请问it is+adj+for sb+to do,有没有it is+adv+for sb+to do呢 -
辕超成17788904197 ______[答案] it is+adj.+for sb+to do sth为固定句型,而it is+adv+for sb+to do这种句型是没有的
鱼琴若1295用It was +形容词+for sb+to do sth句式造句 -
辕超成17788904197 ______ 这句话的意思:对某某来说,做什么事是怎么样的.it 's hard for me to deal with the problem.
鱼琴若1295make+sb+do造句 -
辕超成17788904197 ______ 格林一家热情的欢迎我们,使我们感觉像在家里一样 The Greens welcomed us warmly and made us feel at home.