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

A.\(50\Omega \)
B.\(20\Omega \)
C.\(40\Omega \)
D.\(30\Omega \)

A.20
B.50
C.30
D.25

A.24 dB.
B.4 dB.
C.6 dB.
D.26 dB.

A.\({v_{3\max }} = 5c{\rm{ }}m/s.\)
B.\({v_{3\max }} = 10cm/s.\)
C.\({v_{3\max }} = 9{\rm{ c}}m/s.\)
D.\({v_{3\max }} = 4{\rm{ c}}m/s.\)

A.language
B.luggage
C.heritage
D.teenage

A.passionate
B.integrate
C.communicate
D.demonstrate

A.conclude
B.conceal
C.concentrate
D.conduct

A.ethnically
B.ethics
C.ethnicity
D.ethnic

A.humor
B.responsibility
C.self
D.honesty