LZ型螺杆:万向轴壳体和定子壳体的联接螺纹装配时涂有粘结剂,拆卸时应加热至200摄氏

题型:单项选择题

问题:

LZ型螺杆:万向轴壳体和定子壳体的联接螺纹装配时涂有粘结剂,拆卸时应加热至200摄氏度,用大钳拆卸,加热定子壳体螺纹时,在距螺纹端100mm范围之内加热,并在100mm之外用(),避免热传给定子橡胶,降低定子寿命。

A、钳子加住

B、台钳加稳

C、湿布包上

D、套子套住

考点:井下作业工高级井下作业工高级井下作业工题库
题型:单项选择题

A recent poll indicated that half the teenagers in the United States believe that communication between them and their parents is (1) and further that one of the prime causes of this gap is (2) listening behavior. As a(an) (3) in point, one parent believed that her daughter had a severe (4) problem. She was so (5) that she took her to an audiologist to have her ear tested. The audiologist carefully tested both ears and reported back to the parent:"There’s nothing wrong with her hearing. She’s just (6) you out. "

A leading cause of the (7) divorce rate (more than half of all marriages end in divorce) is the failure of husbands and wives to (8) effectively. They don’t listen to each other. Neither person (9) to the actual message sent by the other.

In (10) fashion, political scientists report that a growing number of people believe that their elected and (11) officials are out of (12) with the constituents they are supposedly (13) Why Because they don’t believe that they listen to them. In fact, it seems that sometimes our politicians don’t even listen to themselves. The following is a true story: At a national (14) conference held in Albuquerque some years ago, then Senator Joseph Montoya was (15) a copy of a press release by a press aide shortly before he got up before the audience to (16) a speech. When he rose to speak, (17) the horror of the press aide and the (18) of his audience, Montoya began reading the press release, not his speech. He began, "For immediate release. Senator Joseph M. Montoya, Democrat of New Mexico, last night told the National... " Montoya read the entire six page release, (19) with the statement that he "was repeatedly (20) by applause.

7()

A.rising

B.arising

C.raising

D.arousing

题型:单项选择题

阅读下列说明,回答问题1至问题3,将解答填入答题纸的对应栏内。

【说明】

某学校拟开发一套实验管理系统,对各课程的实验安排进行管理。

【需求分析】

每个实验室可进行的实验类型不同。由于实验室和实验员资源有限,需根据学生人数分批次安排实验室和实验员。一门含实验的课程可以开设给多个班级,每个班 级每学期可以开设多门含实验的课程。每个实验室都有其可开设的实验类型。一门课程的一种实验可以根据人数、实验室的可容纳人数和实验室类型,分批次开设在 多个实验室的不同时间段。一个实验室的一次实验可以分配多个实验员负责辅导实验,实验员给出学生的每次实验成绩。1.课程信息包括:课程编号、课程名称、 实验学时、授课学期和开课的班级等信息;实验信息记录该课程的实验进度信息,包括:实验名、实验类型、学时、安排周次等信息,如表3-1所示。

2.以课程为单位制定实验安排计划信息,包括:实验地点,实验时间、实验员等信息。实验计划如表3-2所示。

【问题2】(8分)

  根据图3-1,将逻辑结构设计阶段生成的关系模式中的空(1)~(6)补充完整。对所有关系模式,用下划线标出各关系模式的主键。

题型:单项选择题

如何对松皮小卷蛾进行防治?

题型:单项选择题

某溶液主要含有Ca2+、Mg2+及少量Fe3+、Al3+,今在pH=10的该溶液中加入一定量的三乙醇胺,以EDTA滴定,用铬黑T为指示剂,则测出的是( )。

A.Mg2+

B.Ca2+

C.Ca2+,Mg2+总量

D.Ca2+、Mg2+、Fe3+、Al3+总量

题型:单项选择题

肾血管平滑肌脂肪瘤与肾癌鉴别的要点是()

A.肿瘤大小

B.肿瘤形态

C.肿瘤有无强化

D.瘤内有无脂肪成分

E.肿瘤强化程度

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