【单选题】【消耗次数：1】
Anything that is ____ must be attended to immediately.
①
critical
②
essential
③
urgent
④
immense
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相关题目
【单选题】
2.Should any critical issue _______ the negotiation with foreign company, immediately report to the manager for advice.
①
arise from
②
interact
③
ensure
④
. make
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The board deemed it’s urgent that these files ____
right away.
①
had to be printed
②
should have been printed
③
must be printed
④
should be printed
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Although ____ Spanish, he attended the course.
①
he was knowing
②
he is knowing
③
having a knowledge of
④
knows
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Since the matter was extremely _____, we dealt with it immediately.
①
tough
②
tense
③
urgent
④
instant
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This is a very difficult operation. It is essential that you __________ for emergency.
①
are to be prepared
②
would prepared
③
be prepared
④
must be prepared
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The board deemed it’s urgent that these invitations _____first thing tomorrow morning.
①
had to be put in the mail
②
must be put in the mail
③
be put in the mail
④
should have been put in the mail
【单选题】
It is necessary____________ the book immediately.
①
for him to return
②
that he return
③
his returning
④
to him return
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It was essential that her thinking ______ calm and reasoned.
①
remained
②
remain
③
had remained
④
would remain
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For a successful business, friendly and __________ staff are essential.
①
sufficient
②
effective
③
efficient
④
respective
随机题目
【单选题】
关于空气供给系统，下列叙述正确的是（）
①
旁通式空气供给系统采用节气门直接控制的发动机控制系统，发动机正常工作和怠速运转时的空气流通线路完全相同。
②
直接供气式空气供给系统采用节气门直接控制的发动机控制系统，发动机正常工作和怠速运转时的空气流通线路完全相同。
③
旁通式空气供给系统采用节气门直接控制的发动机控制系统，发动机正常工作和怠速运转时的空气流通线路不相同。
④
直接供气式空气供给系统采用节气门直接控制的发动机控制系统，发动机正常工作和怠速运转时的空气流通线路不相同。
【单选题】
差动霍尔式传感器的输出电压由两个霍尔信号电压叠加而成，因此，转子凸齿与信号发生器之间的气隙可以增大到：
①
（1±0.5）mm
②
（2±0.5）mm
③
（3±0.5）mm
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如果汽车前轮抱死可能引起的后果是（）
①
汽车横向附着系数最大，汽车失去转向能力
②
汽车横向附着系数很小，后轮容易发生侧滑
③
汽车横向附着系数很小，汽车失去转向能力
④
汽车横向附着系数最大，汽车失去抵抗横向外力的能力很弱，会出现180°转弯的现象
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霍尔式车轮转速传感器根据霍尔效应原理来测量车轮转速，当齿轮与霍尔元件的位置如下图，和之前状态相比，霍尔元件的输出的电压是（）。
①
变小
②
不变
③
变大
④
不确定