完形填空。先阅读短文,然后从短文后每小题的A、B、C、D中选出能填入文章空白处的最佳答案。 There were some new soldiers on the ground. They were taught in
如图,在平面直角坐标系中,点A,B,C,P的坐标分别为(0,2),(3,2),(2,3),(1,1). (1)请在图中画出△A′B′C′,使得△A′B′C′与△ABC关于点P
________ this computer with yours and you will find the difference between them. A. Having compared B. Compared C. ComparingD. Compare
氟化氢钠(NaHF2)可以用作防腐剂和食品保存剂,该化合物中氟元素的化合价是( ) A.0B.﹣1C.+2D.+1
It’s good to make mistakes, and here is why. First of all, mistakes are a clear sign that you are trying new things. It’s always good to try new things because when you are trying new thing
没有细胞结构的生物是( ) A. 草履虫 B. 太阳虫 C. 烟草花叶病毒 D. 变形虫
江苏省电力公司依靠自主创新首创的“电网安全自动防控系统”,将电网紧急状况处置时间缩短到0.1秒,使江苏电网在2008年初的雪灾中始终保持平稳
如图所示,图线1、2分别表示导体A、B的伏安特性曲线,它们的电阻分别为R1、R2,则下列说法正确的是()A.R1:R2 =1:3 B.R1:R2 =3:1C.将R1与R2