What is NOT tree of the distance learning course？
A. It is a new thing.
B. Many students signed up.
C. It is experimental.
D. Many departments have it this semester.
【C17】
A. transformed
B. converted
C. modified
D. justified
【C5】
A. stage
B. era
C. phase
D. century
【C7】
A. above all
B. after all
C. in all
D. at all
微信支付 
支付宝支付