Before the machine is switched on, ensure that no one can _________ when the machine is running.
A: endanger
B: endangered
C: Be endangering
D: be endangered
A: endanger
B: endangered
C: Be endangering
D: be endangered
D
举一反三
- Before the machine is switched on, ensure that no one can _________ when the machine is running. A: endange B: endangered C: Be endangering D: e endangered
- Before the machine is switched on, ensure that no one can _________ when the machine is running.
- Engineers are ( ) to locate the source of the problem. A: endeavored B: endeavoring C: endangered D: endangering
- How can you keep the machine _____when you are away ? A: run B: ran C: running D: being run
- When multiple people operate a machine tool, ( ) A: two people can operate the machine at the same time B: only one person can operate at the same time C: only one person can operate at the same time, and other students can leave the machine to rest D: All of the above are correct
内容
- 0
How can you keep the machine ________ when you’re away? A: run B: to run C: running D: being run
- 1
How can you keep the machine ____when you are away?
- 2
Every one of us has ____ machine; _____ machine is _____ brain. A: a… the… the B: a… a… a C: a… a… the D: the… a… a
- 3
According to passage, what is one of the best ways to preserve endangered species?
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Gear shaping machine can machine the worm gears