Manypeoplehaveheardofthe“braindrain”.Thisis
來源:國語幫 1.81W
問題詳情:
Many people have heard of the “brain drain”. This is ________ happens ________ people with good skills and a good education move to other countries for study or work, often at great expense to their home countries.
A. which; when B. what; that C. what; when D. why; when
【回答】
C
知識點:連詞
題型:選擇題