— Which of the two magazines will you buy?
— I will take _______. ______ are useless to me.
A:both, Either
B:either, Both
C:neither, Both
I going to the high jump. ( )
掌握化学用语是学好化学的基础.请用化学用语填空:
(1)单质铁____ ;
(2)3个碳原子____ ;
(3)5个水分子____ ;
(4)硫在空气中燃烧____ .
I can hardly hear the radio. Would you please _______ ?
实验室不用稀硫酸与大理石反应制取二氧化碳的原因是( )