—______you study at home in 100 years?
—Yes, I______.
A:Are; am
B:Will; will
C:Will; do
D:Are; do
能除去H2中混有少量HCl气体的装置是____(填装置序号)。
汉代以来,人类文化的传播变得更加方便和快捷,最主要是因为( )