【单选题】—You haven't bought anything for supper, have you? —______, I did. Can't you see the hamburgers in the fridge? [ ]
【多选题】沉淀池进水区提高进水均匀性的措施有( )。
【简答题】小班学前儿童进行游戏时,由于年龄小,大多处于 _________ _________、 _________ _________时期,主要满足于 _________ _________,对物品的要求是别人有的,他也要有,对相同的物品要求多,矛盾的焦点集中在 _________ _________ _________上。
【单选题】When you don't know a word, you can _______ in the dictionary. [ ]
【多选题】际效用呈递减规律,但也有边际效用不递减的特殊情形,比如 ( )
【单选题】关于胸导管的描述错误的是:
E.
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