Of the two types of sentence stress, sense stress shows contrast, while logical stress shows meaning.（）

The back-chaining technique means the students repeat a...

判断题The back-chaining technique means the students repeat a sentence after the teacher, starting from the end part of the sentence and moving towards the beginning.（）

A phoneme is the smallest distinctive sound unit, incap...

判断题A phoneme is the smallest distinctive sound unit, incapable of change in different phonetic environments.（）

Consonants vary depending on where and how the air stre...

判断题Consonants vary depending on where and how the air stream gets through, the place and movement of the tongue, and also whether the voice is used or not.（）