分离空气方法有()。A、低温法 B、吸附法 C、膜分法 D、人工法

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问题:

分离空气方法有()。

A、低温法

B、吸附法

C、膜分法

D、人工法

考点:制氧工考试制氧工考试题库
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特种包装常分为()等包装机械。

A.收缩、拉伸

B.热成型

C.充气

D.真空

E.现场发泡

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纤维肌痛的临床表现包括()

A.广泛的疼痛

B.体能下降

C.认知功能障碍

D.睡眠障碍

E.感觉异常

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民事权利( )。

A.对于法人而言,都是始于法人成立终于法人消灭

B.都是由民事法律规范直接规定的

C.都是特定人对特定人的权利

D.可以由当事人在法定范围内协商决定

E.属于民事法律关系的内容

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工会各级组织按照按照民主集中制原则建立。

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Visitors to Britain may find the best place to sample local culture is in a traditional pub. But these friendly hostelries can be minefields of potential gaffes for the uninitiated.
An anthropologist and a team of researchers have (1) some of the arcane rituals of British pubs—starting with the (2) of getting a drink. Most pubs have no waiters—you (3) to go to the bar to buy drinks. A group of Italian youths (4) for 45 minutes before they realized they would have to (5) for their own. This may sound inconvenient, but there is a (6) purpose.
Pub culture is designed to (7) sociability in a society known for its reserve. Standing at the (8) for service allows you to chat with others (9) to be served. The bar counter is possibly the only (10) in the British Isles in which friendly conversation with (11) is considered entirely appropriate and really quite normal (12) . "If you haven’t been to a pub, you (13) been to Britain." This tip can be found in a (14) , Passport to the Pub: The Tourists’ Guide to Pub Etiquette, a (15) code of conduct for those wanting to sample "a central part of (16) life and culture". The trouble is that if you do not (17) the local rules, the experience may fall flat. For (18) , if you are in a big group, it is best if only one (19) two people go to buy the drinks. Nothing irritates the (20) customers and bar staff more than a gang of strangers blocking all access to the bar while they chat and dither about what to order.

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