A、B两个弹簧振子,A的固有频率为f,B的固有频率为4f。若它们均在频率为3f的驱动力作用下做受迫振动,则( )A.A的振幅较大,振动频率为f B.B的振幅较大,振动频率为3fC.A的振幅较大,振动频率为3f D.B的振幅较大,振动频率为4f
—I like the ________ in that restaurant near our school.
—Me, too. They have the best cooks in our town.
food
service
environment
David is really ________ after the 1000-meter race, so he has to take a rest.
worried
bored
tired
—Judy practices her oral English hard every day.
—So she does. She pronounces words ________ than before.
clearly
more clearly
most clearly
—________ is the biggest blue whale?
—As I know, it weighs about 181, 000 kilos.
How heavy
How long
How wide
Using AI tools in the right way can help ________ to work better.
we
us
our