【简答题】已知x 1 、x 2 是方程x 2 -2x-2=0的两个实数根,不解方程求下列各式的值。 (1) = (2) =
【简答题】当a=2,b=﹣3时,求下列各代数式的值 (1)a 2 +2ab+b 2 (2)(a+b) 2
【单选题】The dumping of refuse in a lock is permitted ______.
A.
when approved by the lockmaster
B.
shen locking downbound
D.
during high water only
【单选题】Dumping occurs when a firm
A.
sells too much of a good in a foreign country.
B.
sells in a foreign country at prices that are below fair value.
C.
sells in its home market at prices that are below the average price charged by its competitors.
D.
sells in a foreign market at prices that are below the prices charged by firms based in the
【简答题】设函数f(x)在点x 0 处可导,求下列各式的值: (1) (2)
【简答题】坚持党对人民的____领导是新时代中国特色社会主义基本方略的基本内容,是党和国家的的重大政治优势。
【单选题】党的十九大报告指出,中国尊重各国人民自主选择发展道路的权利,维护国际公平正义,反对把自己的意志强加于人,反对干涉别国内政,反对以强凌弱。这表明( ) 1独立自主是我国外交政策的基本立场 2反对霸权主义是我国外交政策的基本目标 3我国致力于构建国际政治经济新秩序 4维护世界和平、促进共同发展是我国对外关系的基本准则 A.13 B.14 C.23 D.24
【单选题】无符号二进制整数 1000010 转换成十进制数是
【单选题】The dumping of refuse in a lock is permitted ______.
A.
when approved by the lockmaster
B.
when locking downbound
D.
during high water only