题文
At times the balance in nature is ______, resulting in a number of possibly unforeseen effects.
| A．confused |
| B．puzzled |
| C．disturbed |
| D．troubled |
推荐试卷
At times the balance in nature is ______, resulting in a number of possibly unforeseen effects.
| A．confused |
| B．puzzled |
| C．disturbed |
| D．troubled |
试题篮
()
粤公网安备 44130202000953号
