【单选题】如图所示,已知U S1 =90V,U S2 =60V,R 1 =6 W , R 2 =12 W , R 3 =36 W ,用叠加定理计算 I 1 为( )
【简答题】Despite increasing its turnover, this company was unable to keep its strong market share, which, like its share price, ended below its 2006 level.
【单选题】下列各项中作为旅游业的基本构成要素之一,与旅行社、旅游交通、旅游景区等组成旅 游服务体系的是( )。
【单选题】如图所示的分压器,已知R1:R2=1:2,电源电压U S 为90V,将负载RL断开,U O 为A 2 ()
【单选题】Despite its efforts, the newspaper industry still cannot satisfy the readers owing to its ______.
A.
failure to realize its real problem
B.
tendency to hire annoying reporters
C.
likeliness to do inaccurate reporting
D.
prejudice in matters of race and gender
【单选题】下列各项中作为旅游业的基本构成要素之一,与旅行社、旅游交通、旅游景区等组成旅游服务体系的是。
【单选题】旅游交通、旅游景区等组成旅游服务体系的是()。
【单选题】如图所示,已知U S1 =90V,U S2 =60V,R 1 =6 W , R 2 =12 W , R 3 =36 W ,用叠加定理计算 I 2 为( )
【单选题】Despite its efforts, he newspaper industry still cannot satisfy the readers owing to its______.
A.
failure to realize its real problem
B.
tendency to hire annoying reporters
C.
likeliness to do inaccurate reporting
D.
prejudice in matters of race and gender
【单选题】下列各项中作为旅游业的基本构成要素之一,与旅行社、旅游交通、旅游景区等组成旅游服务体系的是()。