下列物质的用途，主要利用其化学性质的是 [ ]
A.用活性炭除去冰箱的异味
B.干冰用于人工降雨
C.用熟石灰改良酸性土壤
D.铜用于制造电线
答案：C
—Did you forget about my birthday?
—________. I should have booked a table at Michel’s restaurant for you.
A．What then?
B．How could I?
C．For sure.
D．I’m awfully sorry.
统筹区域发展的核心目标使什么？
