憋压法补贴套管第一行程补贴完成后,放空压力,上提管柱1.4~1.5m,再进行第2行程

题型:判断题

问题:

憋压法补贴套管第一行程补贴完成后,放空压力,上提管柱1.4~1.5m,再进行第2行程的憋压补贴。

考点:井下作业工井下作业工高级技师井下作业工高级技师题库
题型:判断题

已知等比数列{an}中,a2=2,a5=128.若bn=log2an,数列{bn}前n项的和为Sn

(Ⅰ)若Sn=35,求n的值;

(Ⅱ)求不等式Sn<2bn的解集.

题型:判断题

根据短文内容,从下框的A~F选项中选出能概括每一段主题的最佳选项。选项中有一项为多余项,并在答题卡上将该选项涂黑。

A. Sitting at the back means fewer food options.

B. Flight attendants get paid only for flight hours.

C. Flight attendants’ job is to keep passengers safe.

D. Flight attendants might water down your drinks.

E. Flight attendants are trained to identify criminals.

F. The seat-belt sign is “on” far longer than necessary.

Things An Air Hostess Won't Tell You

To make things a bit easier for them and ensure a smooth flight, many Flight attendants have little tricks under their sleeves. Here are some of them which they won't tell you out of sheer politeness.

小题1:__________

Contrary to what most people think, a flight attendant's primary job is to ensure your safety - the helping and serving part of their job are just add-ons. If they are assisting you with your luggage, it is to make sure it is stored properly and does not harm anyone. They are not required to lift your bags or help you take them elsewhere. All the other assistance, such as providing you with a drink, handing you hot towels, etc., are to make sure you stay calm and satisfied.

小题2:__________

As unfair as it may seem, the time that a flight attendant spends in getting the plane ready, settling you down, etc., is not included in their salary. They do, however, receive some expense allowance(津贴) for the entire time they clock in - it is a pretty small income though

小题3:__________

If a flight attendant feels a passenger is ordering too many drinks, and getting drunk, they might avoid serving him/her by avoiding eye contact. When that fails, they might just fill the glass half-way or give him/her a diluted (稀释的) drink

小题4:__________

A number of training programs and workshops exist to train flight attendants in different aspects. As some people are using flights more and more to smuggle (走私), flight attendants are being regarded as the first line of defense against this heinous (邪恶的)crime. The benefits are already evident - a number of dangers are avoided, thanks to alert(警惕的) flight attendants on board

小题5:__________

This is a bit unfortunate for those sitting at the back of the plane, but nevertheless true. As the attendants start serving from the front of the plane to the back, the variety of drinks or meals might go down. This is because a plane has limited space, only a certain number of items can be stored, and by the time they get to the back of the plane, they run out of at least a few of the options.

题型:判断题

某一患者进行电解质检测发现钾离子浓度为7.5mmol/L,钠离子浓度为142mmol/L,氯离子浓度为103mmol/L,这种情况最常见于

A.醛固酮增多症

B.大量应用胰岛素

C.是否应用了噻嗪类利尿剂

D.碱中毒

E.标本严重溶血

题型:判断题

下列关于力的方向的说法中,错误的是(  )

A.重力的方向总是竖直向下的

B.压力的方向总是垂直于支持面

C.滑动摩擦力的方向总是与物体运动方向相反

D.绳拉物体的力总是沿着绳的收缩方向

题型:判断题

金葡菌败血症的特征应除外()

A.多见于男性,病前一般情况良好

B.原发病灶以皮肤粘膜及呼吸道感染为主

C.急起发热、寒战、高热

D.关节症状明显,皮疹形态多样化,易发生迁徙病灶

E.感染性休克较多见

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