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【多选题】
What are the main branches of civil engineering?
A.
Structural engineering
B.
Geotechnical engineering
C.
Transportation engineering
D.
Civil engineering materials
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无变化
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制冷剂流量
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【单选题】London is steeped in Dickensian history. Every place he visited, every person he met, would be drawn into his imagination and reappear in a novel. There really are such places as Hanging Sword Alley i...
A.
Because Dickens once lived there.
B.
Because Dickens died there.
C.
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A.
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【简答题】看图写话。 1. my, sister, now     2. Beijing,  it             3. he, every day    4. Kate, want 1.______________________________________________________ 2.__________________________________________________...
【单选题】在相同线电压作用下,同一台三相交流电动机作三角形联结所产生的功率与作星形联结所产生功率之比是
A.
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B.
1/3
C.
1/
D.
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