题文
---How much difficulty did you have________________ this physics problem?
---_____________. It's quite easy.
| A．to solve, Nothing | B．solving; None |
| C．to solve, None | D．solving; Nothing |
---How much difficulty did you have________________ this physics problem?
---_____________. It's quite easy.
| A．to solve, Nothing | B．solving; None |
| C．to solve, None | D．solving; Nothing |
试题篮
()
粤公网安备 44130202000953号
