C:钠可把钛、锆、铌、钽等金属从它们的卤化物溶液里还原出来
D:工业上将二氧化硫通入过氧化氢溶液,获得硫酸
A:将氯气通入澄清石灰水,获得漂白粉
B:工业上,用SiO2+2CSi+2CO↑制得粗硅
下列关于生长激素和甲状腺激素的叙述中,不正确的是( )
Travelling to London
We think ⑴ is the best season to visit England.
We did most of our sightseeing(观光) ⑵ .
The best part of the trip was going to the theatre.
We don't think the English food is very ⑶ .