【单选题】下列说法或做法中正确的是
A.
衣服上的油污用洗涤剂或汽油都可以除去,二者的去污原理相同
【单选题】The term ’ship’ is used to denote a_____ employed to transport goods and persons from one point to another over water.
【单选题】The economic term used to describe what is given up when choosing one alternative instead of another is __________ .
【简答题】用汽油或加了洗涤剂的水都能除去衣服上的油污,分析二者的原理是 _________
【简答题】用汽油或加了洗涤剂的水都能除去衣服上的油污.这两者的原理______(填相同或不相同).理由是______.
【简答题】用汽油或加了洗涤剂的水都能除去衣服上的油污,分析二者的原理是______
【简答题】用汽油或加了洗涤剂的水都能除去衣服上的油污,两者的原理是否相同?如不同,请说明二者的去污原理.
【单选题】()认为儿童歌谣是一种学前儿童爱听爱学,并容易理解其中的道理。
【单选题】Which term is used to describe the experience of a learner who works successfully with the support of another and extends his knowledge in the process?
D.
Zone of proximal development