In the e-mail, the word "introductory" is closest in meaning to

Question 1

C. profound

Answer

C. profound

Question 2

D. optional

Answer

D. optional

Question 3

A. basic

Answer

A. basic

Question 4

B. required

Answer

B. required

Câu hỏi: In the e-mail, the word "introductory" is closest in meaning to