make+sb+a+rule

项厘利4252make+sb+doing -
戈王寒19363834771 ______ make sb to do sth是使某人去做谋事,但还没做. make sb do sth.是强迫某人做某事.没有楼主那个句型.

项厘利4252make+sb+do造句 -
戈王寒19363834771 ______ 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.

项厘利4252用下列单词按括号里给出的模式造句:1.become(S+V+C)2.go(S+V+C+A)3.buy(S+V+O+IO) -
戈王寒19363834771 ______ 1. The boy becomes strong. 2. The milk goes sour quickly. 3. My father buys me a book. 4. They made the garden beautiful. 5. I finished my homework.

项厘利4252为什么made him famous属于make sb.+adj的结构?而不是make sb+n的 -
戈王寒19363834771 ______ 因为famous是形容词呀 如果是make him the headteacher之类,就是+名词了

项厘利4252make+an+apology+to+do+sb+for+sth+的造句 -
戈王寒19363834771 ______ You should make an apology to your mother for your rudeness.你应该为你的无礼向你妈妈道歉.

项厘利4252make sb +后部 怎么造句
戈王寒19363834771 ______ make sb+do+sth He want to make you go home!

项厘利4252已知三角形的三边为a、b、c,设p=1/2(a+b+c),求证三角形的面积S=√p(p - a)(p - b)(p - c) -
戈王寒19363834771 ______[答案] 证明:若ΔABC的三边长为a、b、c,则SΔABC=√((a+b+c)*(-a+b+c)*(a-b+c)*(a+b-c))/4(这是海伦公式的变形,“负号“-”从a左则向右经过a、b、c”,负号从x轴负轴向正轴扫描一个周期!我觉得这么...

项厘利4252s三角形abc等于二分之一半径(a+b+c) -
戈王寒19363834771 ______[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).

项厘利4252设绝对值小于1的 全体实数的集合为S,定义a*b=a+b/1+ab,求证,如果a和b属于S,那么a*b也属于S. -
戈王寒19363834771 ______[答案] 即当-1证明-1先证(a+b)/(1+ab)由于-1所以1+ab>0 即证a+b或(a-1)(b-1)>0 a-1 同样证a+b)/(1+ab)>-1 或者 求证:如果a与b属于S,那么a*b也属于S 命题等价于: 若|a|证: 反证法,若|(a+b)/(1+ab)|≥1 两边平方移项得 (a+b)^2-(1...

项厘利4252 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______. -
戈王寒19363834771 ______[答案] ∵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...