【单选题】The purpose in writing the passage is ______.
A.
to analyze the situation we are in.
B.
to warn us of the danger Earth faces.
C.
to identify nine planetary boundaries.
D.
to delineate the limits to human growth.
【判断题】某厂劳动生产率计划在去年的基础上提高 8% ,计划执行结果仅提高了 4% ,因此劳动生产率计划仅完成一半。
【单选题】We are worried about this fluid situation full with uncertainty
【判断题】某厂劳动生产率计划在去年的基础上提高 8%,计划执行结果仅提高了4% ,则劳动生产率计划仅完成了一半。