In the late 1960s , motorcyclists in California , USA , （16 ) to go out in the countryside and ride their machines up and down mountain tracks just for fun. They made （17) noise and did a lot of dama

The author regards the appeal to education reform. in the 1950s and the 1960s chiefly as _

What was the war affair in late 1960s that made many American young people love to take up

根据材料，完成题。 Fitness Movement The fitness movement that began in the late 1960s and

Text 3In the early 1960s Wilt Chamberlain was one of only three players in the National Ba

The fitness movement that began in the late 1960s and early 1970s centered around aerobic

() switching was invented in the late 1960s for data communications. A．Frame B．Link C．