A.put on
B.give up
C.turn down
D.take back

A.wooden round small
B.round wooden small
C.small round wooden
D.round small wooden

A.fixes
B.was fixing
C.fixed
D.is fixing

A.dominate
B.disagree
C.disrespect
D.interfere

A.support
B.slogan
C.icon
D.motto

A.support
B.slogan
C.icon
D.motto

A.\(\frac{1}{3}s\)
B.\(\frac{2}{3}s\)
C.\(\frac{1}{6}s\)
D.\(\frac{1}{{12}}s\)

A.10 Hz.
B.7 Hz.
C.\(\frac{{120}}{13}{\rm{ }}Hz\)
D.8 Hz.

A.15V.
B.27V.
C.18V.
D.24V.

A.7,50 cm.
B.4,12 cm.
C.2,5 cm.
D.1,88 cm.