速度刹车功能由什么完成

accessory drive gearbox

access panel

accelerometer

accelerate

Five-year-old children are too young to go to school,   （）     ?

After Yang Liwei succeeded in circling the earth,     （）   our astronauts desire to do is walk in space.

What surprised me was not what he said but    （）     he said it.

How wonderful! The   （）   is made of  （）        .

（） is often the case, we have worked out the production
plan.

The news that we are going outing    （）     a rush of excitement.