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.
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.
A
举一反三
- 举起板子之前，确保它是安全的。 A: Make sure that the platform is safe before you lift it. B: Make sure the platform is secure before raising it.
- ______ before you leave the lab. A: Make sure that the windows are shut B: To make sure that the windows are shut C: Making sure to shut the windows D: To be sure to shut the windows
- Before you travel to America, make sure your passport is( ).
- Before leaving the city, be sure to make __________ for a shopping trip. A: time B: tea C: sure D: up
- 12. Before leaving the city, be sure to make __________ for a shopping trip. A: time B: tea C: sure D: up
内容
- 0
Make sure you _____ before exercise, otherwise you may injure yourself.
- 1
Make sure the label （标签） is firmly _______ to the parcel before you mail it.
- 2
– Make sure you turn off the air conditioners before going out. – ______.
- 3
You have to__what time the train leaves before you book the ticket. A: sure B: make certain C: be sure D: be certain
- 4
Before you start, make sure you have a clear idea of why you are starting a company.