在顶升飞机之前，确保飞机的稳定性。 A: Make sure that the aircraft is stable before you lift it with jacks. B: Make sure that the aircraft settles before you lift it with jacks. C: Before jacking up aircraft make sure that aircraft stability is ensured. D: Before jacking up aircraft make sure that aircraft stabilization is ensured.

In the procession, the three men who wear brilliant shirts, silk costumes embroidered in gold, red stockings and black slippers are ______. A: matadors B: picadors C: jumping jacks

中国大学MOOC: Directions: Complete the response to Jacks questions below.Why dont we In my opinion How about Im afraid I see I think Clara: ____________ (4) dong both? We can stretch our brand and improve our image at the same time.

中国大学MOOC: Directions: Complete the response to Jacks questions below.Why dont we In my opinion How about Im afraid I see I think Jack: The proposal is the we change our logo and rethink our brand image. So, what are your views on this.Mary: ____________ (1), this is the only way to solve our current problems.