【简答题】Name the 4 types of equilibria discussed in this lecture.
【单选题】If we ate more food containing fibre, ______.
A.
our diet would be healthier
B.
we would be as healthy as people in other countries
C.
our diet would be more interesting
D.
we would only eat whole-meal bread and vegetables
【单选题】下列物质的分类合理的是
A.
碱性氧化物:Na 2 O、CaO、Al 2 O 3 、Na 2 O 2
B.
碱:NaOH、KOH、Ba(OH) 2 、Na 2 CO 3
C.
氧化物:Fe 2 O 3 、NO、SO 2 、H 2 O
D.
电解质:KNO 3 、Cl 2 、HCl 、BaSO 4
【多选题】景区讲解在进行旅游景区情况介绍时,内容主要包括( )p127
B.
景区所在旅游地的位置以及周边的自然,人文展观和风土人情
D.
游览过程中的注意事项,并提醒游客保管好自己的贵重物品
【简答题】(10分)写出化学方程式,一步实现下列转变。 ①Al→NaAlO 2 ②Al 2 O 3 →AlCl 3 ③Fe(OH) 2 →Fe(OH) 3 ④Na 2 O 2 →Na 2 CO 3 ⑤Na 2 CO 3 →NaHCO 3
【单选题】领导者情商的“自我管理”不包括以下哪个方面的内容( )
【单选题】The business is risky. But______we would be rich.
【单选题】We would like to take this opportunity to thank our partners, without ________ we would not be able to organise the music festival. [ ]