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【单选题】
Roses need special care______ they can live through winter.A.
so that
B.
because
C.
even if
D.
as
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【简答题】常见的逆温形式有:____、____、____、____、____
【单选题】伦琴于1895 年11 月 发现了 X 线,随后世界上第一只高真空热阴极固定阳极 X 线管于( ) 年问世。
A.
1895
B.
1896
C.
1913
D.
1914
【简答题】曝气池容积计算常用()计算法。
【单选题】According to the passage, the solution offered by the technician was ______.
A.
effective
B.
economical
C.
unpractical
D.
unacceptable
【简答题】曝气池容积计算常用（）负荷率计算法。
【单选题】According to the passage, the customers pay more attention to ______
A.
e-commerce companies' financial stability
B.
e-commerce companies' financial resources
C.
e-commerce companies' financial longevity
D.
e-commerce companies' financial security
【简答题】Passage Two Questions 51 to 55 are based on the following passage. Photography was once an expensive， laborious ordeal reserved for life&39;s greatest milestones. Now， the only apparent cost to taking...
【单选题】曝气池(区)容积的常用计算方法有( )。
A.
按BOD污泥负荷、BOD容积负荷和污泥龄计算
B.
按SV和SVI计算
C.
按厂区实际使用而积计算
D.
按污水浓度计算
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