【单选题】The conclusion which can be drawn safely from the second paragraph is that ______.
A.
a population growth from natural increase leads to a greater proportion of the workforce
B.
a large population does not necessarily mean a higher proportion of workforce
C.
the larger the number of the aged in a population, the higher the proportion of the workforce
D.
if the population has an evenly spread age distribution, the workforce will be lower
【判断题】07世界贸易组织的最惠国待遇的特点是单边,有条件的。
【单选题】汽车尾气是全球范围最严重的 ( ) 污染源
【单选题】.Most of the citizens didn’t know what had________just now.
【单选题】汽车尾气是全球范围最严重的 ( )污染源。
【单选题】听力原文:W: Come swimming with me? M: Sorry, but I'm up to my neck in work. Q: What's the man's problem? (13)
B.
He's tired of swimming.
C.
He's too busy to go swimming.
D.
He's afraid to swim in deep water.
【单选题】下列有关交通规划初步方案的预测内容中有误的一项为( )。
B.
包括交通的产生、分布和在道路上交通量的分配的预测