相关试题
When a teacher says to the whole class, “stand up and act out the dialogue”, he/she is playing the role of a（n） ________。
A.monitor B.organizer C.assessor D.prompter
在一个体积固定的密闭容器中加入2mol A和1mol B，发生反应：2A（g）+B（g）⇌3C（g）+D（g）.达到平衡时C的浓度为αmol.L-1。若维持容器体积和温度不变，按下列四种配比作为起始物质，达到平衡以后，C的浓度仍为αmol.L-1的是（ ）。
A.4mol A+2molB B.2 mol A+1 molB+3mol C+1mol D C.3 mol C+1 molD+1mol B D.3 mol C+1 molD
运用“有机音乐”的观念创作了《纸乐》《水乐》《地图》等作品的当代作曲家是（）。
A.谭盾B.刘谖C.朱践耳D.王西麟
Which of the following is an example of teacher′ indirect corrective feedback？
A.Say “went” instead of “go”. B.We never use “at” that way C.Choice A is not the right answer D.Who can help him with this sentence?
There are two syllables in the world “photo”. /əu/ occurs in both syllables, but the first one is _______ the second because it is stressed。
A.longer than B.shorter than C.as long as D.as short as
