中国大学MOOC: Mud from the bottom of the pond can be used to ______ crops.
举一反三
- Mud from the bottom of the pond can be used to ________ the crops. A: sow B: irrigate C: fertilize D: weed
- 中国大学MOOC: What can be used to distinguish people of one ethnic group from another?
- 中国大学MOOC: Terrace can be used to ______________.
- 中国大学MOOC:"Which of the following gestures can be used to move your audience from one idea to the next or to enumerate things?";
- 中国大学MOOC: Posters can be used for advertising.