中国大学MOOC: 737 is a __airplane.
举一反三
- 中国大学MOOC: __ is a force provided by engines to push airplane forward through the air.
- 中国大学MOOC: May I see your passport and __________ before you get on the airplane?
- 中国大学MOOC: 法国大歌剧的风格特征不包括______________。
- 中国大学MOOC: 费希特对法国大革命的态度是
- 中国大学MOOC: They have been waiting for many hours to see the singer, but the airplane must have been ____ .