电梯曳引机减速箱蜗杆轴向游隙增大,会导致()而产生颤动。A.啮合不良 B.串轴过大

题型:单项选择题

问题:

电梯曳引机减速箱蜗杆轴向游隙增大,会导致()而产生颤动。

A.啮合不良

B.串轴过大

C.摆动

D.冲击

考点:电梯检验员考试电梯检验员考试题库
题型:单项选择题

下列关于保险标的危险增加通知义务的说法中,正确的有()。

A.我国《保险法》规定危险增加的通知义务属于法定义务,仅适用于财产保险合同,而不适用于人身保险合同

B.人身保险合同不存在危险增加的通知义务

C.在人身保险中,有的保险条款也有危险增加通知义务的约定

D.被保险人违反危险增加的通知义务,保险人有权要求增加保险费,但不能解除合同

E.因保险标的危险程度增加而发生的保险事故,保险人仍须承担赔偿责任

题型:单项选择题

如果这个病人有漏睛疮,检查中最好的诊断依据是:

A.流泪

B.怕光

C.流脓

D.冲洗泪道不通畅

E.冲洗泪道不通

题型:单项选择题

Jim Lehrer hosts The NewsHour with Jim Lehrer on PBS ( Public Broadcasting Service) and has written 18 novels, two memoirs (回忆录), and three plays. And in his spare time…

What He's Working On

Oh, Johnny (Random House, $ 25), his hovel about a young Marine in 1944. "On his way to war, Johnny met the most beautiful and wonderful girl he'd ever seen. It changed his life. "

Where He's Surfing

"I'm on the computer all day long for nay job, checking the telegraphs, reading the news, send the news eBay because I collect bus memorabilia (值得纪念的东西): toy buses, bus stop signs, and bus driver caps. I've bought quite a bit."

What He's Watching

"I love all the Mystery Series on PBS, including Poirot. My wife and I just love those people. I’m a huge fan of The Sopranos. These are serious stories about high school football in small-town Texas and the challenges these kids have. It's very exciting. "

What He t s Listening To

"I'm always amazed when people say they have 3,000 songs on their iPod, 1 like music, but it’s not a part of my life. 1 am always listening to books on tape, I'm about to begin American Lion, Jon Meacham’s biography (传记) of Andrew Jackson. "

What He's Reading

"At present, I am reading Home, which is set in small-town Iowa. Marilynn Robinson writes about the simple things that are the most complicated of all within the human spirit. Her characters are so alive and real. Not long ago, 1 just finished The Spies of Warsaw, Alan Furst's terrific novel set in pre-World WarⅡ."

60. What job does Jim Lehrer do?

A. A TV host.                 B. A novelist.          C. A reporter.          D. A play - writer.

61. Why does Jim Lehrer spend much time on Google?

A. To collect information for his novel.             B. To collect bus memorabilia.

C. To better carry out his job.                D. To read his favorite novels.

62. In his spare time, Jim Lehrer does all the following things EXCEPT ________.

A. surf eBay for his hobby                                B. watch exciting TV series

C. listen to music on his iPod                     D. work on his own novel

63. Which of the following books is based on a real person?

A. Oh, Johnny.      B. American Lion.         C. Home.         D. The Spies of Warsaw.

题型:单项选择题

屈强比

题型:单项选择题

54,西红花粉粒的特征是()

A.极面观呈三角形,角端各有一个萌发孔

B.呈类球形或长圆形,外壁有细点状条状雕纹

C.呈球形、黄色、外壁具细刺状突起

D.呈球形或椭圆形,表面有似网状雕纹

E.花粉粒少见,呈圆球形,外壁近于光滑

更多题库