题干
—Do you know the scientist ________discovered radium?
—Yes, Marie Curie.
A：what
B：which
C：whom
D：who
答案(点此获取答案解析）
D
—Do you know the scientist ________discovered radium?
—Yes, Marie Curie.
A：what
B：which
C：whom
D：who
现了（ ）