I took mathematics and physics because I think that ________ very important for me to make further research in this field.
| A．what is | B．they are | C．this | D．which are |
相关知识点
推荐试卷
I took mathematics and physics because I think that ________ very important for me to make further research in this field.
| A．what is | B．they are | C．this | D．which are |
试题篮
()
粤公网安备 44130202000953号
