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【单选题】
关于生态环境，报告特别之处，要以雾霾贫乏的特大城市和区域为重点，以细颗粒物PM2.5和可吸入颗粒PM（）治理为突破口。A.
7
B.
8
C.
9
D.
10
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举一反三
【简答题】So loudly ＿＿＿that the audience in the back heard him clearly．
【单选题】The teacher spoke loudly()the students could hear him clearly.
A.
so as
B.
that
C.
so that
D.
in order to
【多选题】如图所示,护木的基本作用是 ( )
A.
把枕木串联起来，形成整体结构
B.
如果车辆越过护轨，护木成为第二道屏障
C.
护木是为了美观而设置
D.
护木在混凝土桥面也需要设置
【单选题】______that even people in the next room could hear him clearly.
A.
So loudly he spoke
B.
So loudly did he speak
C.
So loudly he speaks
D.
So loudly he speak
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