Which of the following cases correctly follow the principles we have learned in this unit?
A、A university student spends much time after class learning academic vocabulary.
B、A high school student makes a weekend plan to memorize words that are associated with sports as many as possible with the help of word cards.
C、A middle school teacher is introducing new vocabulary by adding and switching parts of the new words.
D、To better help students understand the text, a primary school teacher spends much time explaining difficult words like "wrath" in the story she read.
A、A university student spends much time after class learning academic vocabulary.
B、A high school student makes a weekend plan to memorize words that are associated with sports as many as possible with the help of word cards.
C、A middle school teacher is introducing new vocabulary by adding and switching parts of the new words.
D、To better help students understand the text, a primary school teacher spends much time explaining difficult words like "wrath" in the story she read.