半径与直径的比是1:2.______.
在同圆或等圆中,半径与直径的比是1:2.随便的两个圆,不一定有这样的关系.
故答案为:错误.
A new cinema ______ here now. They hope to finish it next month.
A.will be built
B.is built
C.has been built
D.is being built
简述妊娠晚期出现 * * 流血的常见疾病名称。