下面四个句子(1)这首歌调太高,我唱不上去;(2)引吭高歌;(3)她是唱高音的;(4)请勿高声喧哗;其中“高”指音调的是______,指响度的是______(填填序号)
①③,②④
This will be a year of action, and that action should begin by extending unemployment insurance for Americans who were _______ in the economic slowdown.
A.laid out
B.laid off
C.laid on
D.laid down
组织文化的功能是什么: