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【多选题】
起动机上的电磁开关的作用是()
A.
接通蓄电池和起动电动机之间的电路
B.
防止变速器不在空挡位置时起动车辆
C.
拨动起动机小齿轮啮入飞轮齿圈
D.
将蓄电池电能转变成机械能传给发动机飞轮
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【单选题】The public has complained that large quantities of waste water ______ into rivers without being
A.
11. The public has complained that large quantities of waste water ______ into rivers without being cleaned, so large amounts of money ______ to solve the problem. A．have poured; is needed
B.
has poured; are needed
C.
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have been poured; are needed
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【判断题】在塑性变形过程中,随着变形程度的增加,强度硬度增加,塑性韧性发生下降的现象叫加工硬化。( )
A.
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【单选题】That is the only way we can imagine ______ the waste of water in students’ bathroom.
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stop
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stopped
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C3
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【单选题】The water that is diverted from the Aral Sea _____.
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B.
has been used for irrigation for 50 years
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is worth five billion dollars
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supports the local farms and the people who work in farming
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【简答题】Complete as frases com os verbos ter e haver no presente do indicativo. 1. ................ muitas farmácias nesta cidade. 2. A Rita ................ uma farmácia. 3. Hoje ................ um concerto...
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【判断题】金属在塑性变形过程中，随着变形程度的增加，强度、硬度增加，塑性、韧性下降的现象，称为加工硬化。
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【单选题】That is the only way we can imagine ______ the waste of water in students’ bathroom.
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【单选题】The water that is diverted from the Aral Sea _____.
A.
can solve the economic problems of nearby countries
B.
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supports the local farms and the people who work in farming
查看完整题目与答案
【简答题】Complete as frases com os verbos ter e haver no presente do indicativo. 1. ................ muitas farmácias nesta cidade. 2. A Rita ................ uma farmácia. 3. Hoje ................ um concerto...
查看完整题目与答案