在销的装配中,被联两件为平面结合时,上、下销孔多是()。A、上松下紧B、上紧下松C、

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问题:

在销的装配中,被联两件为平面结合时,上、下销孔多是()。

A、上松下紧

B、上紧下松

C、上下一致

考点:综采维修钳工(高级)综采维修钳工(高级)题库
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未经总公司批准,任何单位和个人一律不得自行印制各类业务单证。

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语法填空

     Experts say there are several ways to deal with stress. They include deep breathing and a method

of guided thought called meditation. They also include exercise, eating healthy foods, getting enough

rest and balancing the time  1  ( spend)working and playing.

     Exercise is one of   2    most effective stress-reduction measures. Running, walking or playing sports

causes physical changes  3  make you feel better. Exercise also improves the body's defense system  4  

disease. And studies have found that   5  helps protect against a decrease in mental ability.

     Doctors say deep, slow breathing is also helpful. Many  6  (medicine ) studies have shown that

clearing the mind through quiet meditation  7   (help ) you become calm. This causes lower blood

pressure, reduces muscle tension   8  decreases heart rate.

     Experts also say keeping stress to yourself can make problems  9  ( bad ). Researchers have linked

the failure   10  identify and express emotions to many health conditions. These include eating disorders,

fear disorders and high blood pressure.    (160)

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支气管扩张的主要诊断依据是()

A.胸部X线摄片

B.胸部透视

C.支气管造影

D.纤维支气管镜

E.胸部B超

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国家卫生城市评审每几年为一个周期?()。

A.2

B.4

C.3

D.5

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160km/h以上运行区段,锚段长度在800m及以上的接触线接头的数量限界值不得超过()。

A、2个

B、3个

C、4个

D、5个

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