胡路区
黑龙江省大庆市让胡路区20xx-20xx学年高一数学下学期期末考试试题文
的对边,则下列结论正确的序号是 _______. ① 若 cba 、 成等差数列,则 3B ; ② 若 6324 Bbc , ,则 ABC 有两解; ③ 若 6321 Bacb , ,则 32 ca ; ④ 若 BaAbc c o sc o s)2( ,则 6A . 三、解答题(本大题共 6道题,共 70分) 17. (本小题满分 10分) 在 △
让胡路区棚室经济发展可行性研究报告-1(编辑修改稿)
opening t he gat e. However, when I was going out shopping last week, I not iced hi m i n the garden near t he gat e. Thi s ti me he was barki ng so that someone would l et hi m out ! Since t hen, he