7个5是____.
____的4倍是20.
chí dào
róng huà
hē zuì
jū zhù
____
yáng liǔ
shān fēng
nǎo sháo
tuō zhe
—Thanks for telling me about it.
解答
方案一：若量得∠3=90°，结合∠2情况，说明理由．
方案二：若量得∠1=90°，结合∠2情况，说明理由．
(____) It's a programme about China.
(____) We've got lots of food.
(____) Thank you for talking to us.
(____) She couldn't read or write.
(____) He didn't have any legs then.
的相反数是（ ）