We plan to _________ this machine when funds become available sometime in 2015 with an upgraded machine.
A: risk
B: undertake
C: violate
D: replace
A: risk
B: undertake
C: violate
D: replace
D
举一反三
- 中国大学MOOC: We plan to _________ this machine when funds become available sometime in 2015 with an upgraded machine.
- We will replace the old machine with a computer.我们用这台机器代替那个电脑。
- The ratio of the work done by the machine _________ the work done on it is called the efficiency of the machine.
- Never attempt to machine a work-piece without first checking the operation of the machine.( )
- Before the machine is switched on, ensure that no one can _________ when the machine is running.
内容
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The ratio of the work done by the machine ______ the work done on it is called efficiency of the machine. A: against B: to C: with D: for
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中国大学MOOC: In general, each electrical machine has a nonmoving part and a moving part. We can replace the adjective “nonmoving” with （ ）
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In general, each electrical machine has a nonmoving part and a moving part. We can replace the adjective “nonmoving” with ( ) A: Miniature B: Bulk C: Stationary D: Nonstationary
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We must have the machine ____.
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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