【单选题】【消耗次数:1】
There was so much noise in the classroom that the teacher couldn’t make himself _______.
heard
hearing
to hear
hear
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相关题目
【单选题】 20. The joke told by Tom made us_____, so our maths teacher couldn’t make himself _____.
①  to laugh; hearing
②  laughing, heard
③  laughing; hear
④  laughed; heard
【单选题】 The joke told by Tom made us________,so the teacher couldnt make himself_______.
①  to laugh;hearing
②  laughing;heard
③  laughing;hear
④  laughed;heard
【单选题】 Our English teacher was standing ___ us so that she could hear us all clearly.
①  away from
②  far behind
③  between?
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【单选题】 She was so _____ in her job that she didn’t hear someone knocking at the door.
①  attracted
②  drawn
③  absorbed
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【单选题】 21.Did you hear_____ noise just now?
①  the
②  a
③  /
④  one
【判断题】 I just couldn’t make my mind, so in the end I bought both.
①  正确
②  错误
【单选题】 The noise was so ____ that only those with excellent hearing were aware of it.
①  dim
②  soft
③  faint
④  gentle
【单选题】 7. It is so quiet that you can hear a pin ______.
①  dropping
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【单选题】 The room was so quiet that she could hear the____ of her heart.
①  hitting
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③  hurting
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【单选题】 He was ____ in his work and didn’t hear me come in.
①  critical
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【单选题】 在直流电动机中,机械特性最硬的一般为( )
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【单选题】 若直流他励电动机在电动运行状态中,由于某种因素,使电动机的转速高于理想空载转速,这时电动机便处于( )。
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【单选题】 当电动机的电枢回路铜损耗比电磁功率或轴机械功率都大时,这时电动机处于:( )
①  能耗制动状态
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【单选题】 在电机的制动中,不能使用回馈制动方法的电机是( )
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【单选题】 变压器中最主要的部件指的是铁心和( )。
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【单选题】 变压器中,不考虑漏阻抗和饱和的影响,若原边电压不变,铁心不变,而将匝数增加,则励磁电流;
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【单选题】 并励直流电动机,当电源反接时,转速方向( )。
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【单选题】 额定电压为 10000V/400V 的三相电力变压器带负载运行时,若二次侧电压为410V, 则负载的性质是( )。
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