题目

—A recent survey shows that 35 out of 45 students in my class will save their phones first in a fire． —About _______ of the students made such a choice?Life is far more important，isn’t it?     A．half       B．one third    C．two thirds  D．three quarters 答案：D下列国家中，人口自然增长率最低的是       A．南美洲的巴西    B．非洲的尼日利亚    C．亚洲的中国         D．欧洲的德国