2.填空题:-|||-(1)几何图形由 __ __ __ 组成;
2.填空题【填空题】地基分为____和____两大类。2.填空题【填空题】地基分为____和____两大类。
1.[填空题]-|||-三阶矩阵A满足 |A|=2, 则 |A|= __ o
[单选题]2. —What do you do_________ Friday evening?—I play the piano.A.inB. onC. atD. to
1 [填空题(主观)]-|||-It is hard to.......................难-|||-1.为上学做准备很难。-|||-皂 1题-|
1 [填空题-|||-1、 __-|||-2、 __
[试题]A.ccording to the passage, what do the three people have in common?A. CourageB. DevotionC. Hard workD. Self-confidence
[单选题]A.ccording to the passage, what do the three people have in common?A. Courage.B. Devotion.C. Hard work.D. Self-confidence.
2.[简答题]4.[填空题]int 1n2xdx=____。2.[简答题]4.[填空题]$\int 1n2xdx=$____。
2.[填空题]-|||-排列153426的逆序数是() ()