I'm going to the supermarket to buy some _________ this afternoon.
A:paper and pencil
B:apples and banana
C:milk and eggs
D:bowl and tofu
西药是化学合成制剂,有副作用;中药是纯天然的草药,也有副作用.(判断对错)
如图所示,小华把悬挂的铁锁拉近并紧贴自己的鼻子,稳定后松手,头保持不动,铁锁向前摆去又摆回.下列说法正确的是( )
化学科学需要借助化学专用语言来描述,下列有关化学用语正确的是( )
.If you want to join the art club,you can _______ Mr Zhou after class.