精确到千公顷约是____千公顷．
精确到万公顷约是____万公顷．
精确到亿公顷约是____亿公顷．
关于我国地理位置的叙述，正确的是( )
— Dad, why must I stop computer games?
—For your health, my boy.
mà zhà
wēng wēng
kěn shù
yīng táo
bàng ké
shuǐ piáo
____
