A320飞机每边的大翼上有5块扰流板，其中横滚扰流板、减速板、地面扰流板分别有几块？

accumulator

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.