This type of bamboo grows very fast and it will take only three to five years _____ it can be used in various fields .
| A．before | B．since | C．when | D．as |
相关知识点
推荐试卷
This type of bamboo grows very fast and it will take only three to five years _____ it can be used in various fields .
| A．before | B．since | C．when | D．as |
试题篮
()
粤公网安备 44130202000953号
