(单选题)

The goal of net-zero carbon emission is expected to be achieved by ______.

A.2030s

B.2050s

C.2070s

D.2100s

参考答案：B

参考解析：

细节理解题。根据第二段第一句“China, Japan and South Korea recently joined a slew of European countries setting net zero targets for carbon emissions by the middle of the century.”可知，中国、日本和韩国最近加入了一系列欧洲国家的行列，为本世纪中叶的碳排放设定了净零排放目标。本世纪中叶对应的即B项。故选B。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语