当组件放置到支架上时，锁定组件。
A: When the unit is on its mounting, lock it.
B: Anytime the unit is on its mounting, lock it .
C: Once the unit is on its mounting, lock it.
D: Upon putting the unit on its mounting, lock it.
A: When the unit is on its mounting, lock it.
B: Anytime the unit is on its mounting, lock it .
C: Once the unit is on its mounting, lock it.
D: Upon putting the unit on its mounting, lock it.
举一反三
- 对组件进行测试，以确认其操作没有问题。 A: Do a test of the unit to make sure that there is no problem with its operation. B: Do a test of the unit to establish its operation. C: Do a test of the unit to exercise its operation. D: Test the unit, if you fear that there is a problem with its operation.
- unit 3 vocabulary matching Please match the word with its meaning.
- (词汇题Unit 7 text B) The company is on its _____ and shareholders will not get dividends this year.
- 如果组件变得很脏，那么组件的寿命将会缩短。 A: The life of the unit will decrease if you let the unit become dirty. B: The life of the unit is impaired if the unit is allowed to get dirty. C: The life of the unit is lost if the unit is allowed to get dirty.
- 25.In this text, the author presents a problem with A: opposing views on it. B: possible solutions to it. C: its alarming impacts. D: its major variations.