A:比例尺越大,表示的范围越大
B:比例尺越大,反映的内容越详细
C:比例尺越小,表示的范围越小
D:比例尺越小,反映的内容越详细
(2015•济南)
取两个焦距不同的放大镜,一只手握住一个,通过两个透镜看前面的物体,如图所示,调整两个放大镜问的距离,直到看得最清楚为止.物体变大了还是变小了?把两个放大镜的位置前后对调,你有什么新的发现?为什么要用两个焦距不同的放大镜?
what ,be ,an ,last, some ,the, in ,your ,black ,my ,call, how
Hello, everyone. I ____ Frank Smith.Frank is my first name.My ____name is Smith.This is my schoolbag.It's ____. In it,you can see ____books and a pencil box. ____ is that? Oh,it is a watch. And ____ watch is yellow. It isn't____ . I found it ____ Class 7A. Is it ____? Please ____ Frank at 9556833.
①有丝分裂 ②无丝分裂 ③减数分裂 ④二分裂