Điện năng truyền tải đi xa thường bị hao phí chủ yếu d
A.\({P_{hp}} = R.\frac{{{{\left( {Uco{\rm{s}}\varphi } \right)}^2}}}{{{P^2}}}\)
B.\({P_{hp}} = R.\frac{{{U^2}}}{{{{\left( {P.co{\rm{s}}\varphi } \right)}^2}}}\)  
C.\({P_{hp}} = {R^2}\frac{P}{{{{\left( {Uco{\rm{s}}\varphi } \right)}^2}}}\)  
D.\({P_{hp}} = R.\frac{{{P^2}}}{{{{\left( {Uco{\rm{s}}\varphi } \right)}^2}}}\)

Tính nhẩma 5012 b 58102 c 9996 + 45 d 121256
A.
B.
C.
D.

treat develop prevent detect Giải chi tiếtKiến thức Từ
A.treat
B.develop
C.prevent
D.detect

the other others another other Giải chi tiếtKiến thức
A.the other
B.others
C.another
D.other

partly slowly primarily especially Giải chi tiết
A.partly
B.slowly
C.primarily
D.especially

Therefore Furthermore Otherwise However Giải chi tiếtK
A.Therefore
B.Furthermore
C.Otherwise
D.However

The car was very expensive He couldnt buy it The car wa
A.The car was not cheap enough for him to buy it.
B.The car was so expensive that he couldn't buy it.
C.It was such expensive car that he couldn't buy it.
D.The car was too expensive for him to buy it.

The car was very expensive He couldnt buy it The car wa
A.The car was not cheap enough for him to buy it.
B.The car was so expensive that he couldn't buy it.
C.It was such expensive car that he couldn't buy it.
D.The car was too expensive for him to buy it.

He was very tired He still agreed to help me with my pr
A.As tired as was he, he agreed to help me with my project.
B.Despite being very tired, but he agreed to help me with my project.
C.Tired though he was, but he agreed to help me with my project.
D.Tired as he was, he agreed to help me with my project.

The last time I saw her was three years ago About three
A.About three years ago, I used to meet her.
B.I saw her three years ago and will never meet her.
C.I have not seen her for three years.
D.I have often seen her for the last three years.