⑴Welcome home!
⑵The earth goes around the sun.
⑶It was Daming's birthday yesterday.
⑷This is a book about food.
⑸I'm interested in space travel.
first:____ loudly:____ learn:____
national:____ go:____
葡萄糖的无氧分解过程中,选项中各产物出现的先后顺序正确的是( )
①酒精 ②CO2③H2O ④ATP ⑤乳酸 ⑥H+ ⑦丙酮酸.
They reached the top of the mountain and stopped on a big rock.
直线l经过两点(2,1),(6,3).