chenlaoshi\" post_id=\"2113157\" time=\"1689049080\" user_id=\"162894:

Any phrases（词语）made up with previously learnt Chinese characters（字）can be tested/appear in questions/passage. So for the example above, yes, the phrase tested need not be 锻炼．

Such cases usually appear in Q3 or 4 辨字测验 type of question.

E.g. 这些产品都是从精心挑选的原材料提________而成的。
(1) 炼
(2) 练
(3) 冻
(4) 栋

Just to clarify:

I believe the primary school syllabus does not test vocabulary words outside the school syllabus.

Yes, Chinese characters can be combined but in this example 提炼 has another meaning and is totally different from 锻炼 which is in the school syllabus.

A better example will be 印象。印 is learned as 印度 in the syallabus and 象 is quite common as a matching character for other words. So 印象 is considered to be a vocabulary word that might be tested and it actually also came out in one of the passages in the syllabus.