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【单选题】
A 2011 study by the National Bureau of Economic Research similarly calculates that installing residential solar panels ( boosts ) home prices by 3-4%.
A.
) increases
B.
) promotes
C.
) excludes
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Even if you don't want to purchase your own solar panels, you can enter a solar panel lease or a solar power purchase ( agreement ).
A.
) plan
B.
) deal
C.
) contract
【单选题】用直流电压表测量处于放大状态中的一只NPN型晶体管,各电极对地的电位分别为V1=2V,V2=6V,V3=2.7V,则该晶体管各脚的名称是( )
A.
脚1为C,脚2为B,脚3为E
B.
脚1为E,脚2为C,脚3为B
C.
脚1为B,脚2为E,脚3为C