一个三角形和一个平行四边形的面积和高都相等,三角形的底是4m,平行四边形的底是______m.
4×12=2(米),
答:平行四边形的底是2米.
故答案为:2.
— Allan looks tired out.
— Sure. He _______ in the gym for two hours. [ ]
A. works out
B. had worked out
C. has been working out
D. was working out
元杂剧把中国的戏曲艺术推向了成熟,以下关于元杂剧产生原因的推测,正确的是:()
A.戏曲界“徽汉合流”的局面带动了元杂剧的产生
B.流传甚广的昆曲促成了元杂剧的出现
C.“同光十三绝”等着名艺人的出现
D.“瓦肆”之类娱乐场所和知识分子科考无望而致