A.expressed
B.preserved
C.maintained
D.wondered

A.expressed
B.preserved
C.maintained
D.wondered

A.numerous
B.currency
C.obviously
D.perceiving

A.ancestor
B.identifier
C.achievement
D.adjusting

A.definition
B.nationality
C.globalization
D.generation

A.official
B.similar
C.conclusion
D.tradition

A.spirit
B.unity
C.image
D.protect

A.spirit
B.unity
C.image
D.protect

A.\(\omega  = {\omega _0}\sqrt 2 \)
B.\(\omega  = \frac{{{\omega _0}}}{{\sqrt 2 }}\)
C.\(\omega  = 2{\omega _0}\)
D.\(\omega  = {\omega _0}\)

A.184,8 mm2.
B.184,8 cm2.
C.260 cm2.
D.260 mm2.