相同条件下,相同浓度的盐酸分别与镁、铝、铁3种金属恰好完全反应,产生相同体积的氢气(相同状况下),则下列说法正确的是( )
To complete her online learning, Suzy needs a computer or a mobile phone to receive messages ______her teachers.( )
A.withB.duringC.fromD.through
If we don't protect nature, some wildlife ______die out in the future.( )
A.needB.mayC.can'tD.shouldn't
Our monitor Jenny is so ______that she always keeps things in good order.( )
A.practicalB.generousC.organizedD.modest
The ______of the meeting is to help teachers and parents achieve better communication.( )
A.positionB.progressC.periodD.purpose
Mars Base 1 Camp was built in Jinchang, Gansu, to let young people experience for____.( )
A.itB.themC.itselfD.themselves