标准的氧气瓶应涂成()并写上“氧”字样,其下方应喷涂一圈宽为15mm的白色环圈。A、

题型:单项选择题

问题:

标准的氧气瓶应涂成()并写上“氧”字样,其下方应喷涂一圈宽为15mm的白色环圈。

A、深蓝色

B、天蓝色

C、蓝色

D、绿色

考点:泵站运行工泵站运行工(高级)泵站运行工(高级)题库
题型:单项选择题

以下各题基于以下题干:
据1999年所做的统计,在美国35岁以上的居民中,10%患有肥胖症。因此,如果到2009年美国的人口将达到4亿的估计是正确的话,那么,到2009年美国35岁以上患肥胖症的人数将达到2000万。

以下哪项最可能是题干的推测所假设的

A.在未来的10年中,世界的总人口将有大的增长。

B.在未来的10年中,美国人的饮食方式将不会有任何变化。

C.在未来的10年中,世界上将不会有大的战争发生。

D.到2009年,美国人口中35岁以上的将占了一半。

E.到2009年,对肥胖症的防治仍没有任何进展。

题型:单项选择题

下面说法正确的是( )。

A.从网络拓扑结构上说CSMA/CD与Token Ring是针对星型拓扑结构的局域网设计的

B.从网络拓扑结构上说CSMA/CD与Token Ring是针对总线拓扑结构的局域网设计的

C.从网络拓扑结构上说CSMA/CD与Token Bus是针对总线拓扑结构的局域网设计的

D.从介质访问控制方法的性质角度看,CSMA/CD与Token Bus都属于随机型介质控制方法

题型:单项选择题

                                              136 Crestview Circle

Dover, Connecticut

January 16, 1995

Gander’s Furniture Store

Stamford, Connecticut, 09876

Dear Sir,

I am writing about your January bill, which I am returning with this letter. I am not going to pay this bill. Last month I bought a table and four chairs for $65.50. They were sent to me on December 18. That night one leg of the table broke while my wife was putting our dinner on it. It fell on one of the chair, and that broke, too. Our $ 2.50 steak(牛排) landed on the floor, and the dog ate it.

I spoke to the salesmen who had sold me the table and the chairs. He told me to write you a letter. I wrote you on December 20, saying that I was not going to pay for the furniture. On December 21 some men came and took it back to the store.

Please do something about your records. I do not want to receive another bill for the furniture which I returned.

Yours truly

Alberts Robbins

小题1:From the letter we can know that Mr. Robbins had actually paid _____ for the table and the four chairs.

A.$ 65.50

B.$ 68.00

C.$ 2.50

D.no money小题2: Why do you think Mr. Robbins write the letter to the furniture store?

A.He had paid for the furniture but was asked to pay again.

B.He didn’t want to receive a second bill for the furniture he had returned.

C.The furniture he bought was badly made and he wanted to return it.

D.He wanted the manager to scold the salesmen for the bad furniture.小题3:Try to guess how Mr. Robins felt when he was writing the letter.

A.He was angry.

B.He was sad.

C.He was anxious.

D.He was friendly.

题型:单项选择题

2011年,重庆市开展创建国家环境保护模范城市(简称“创模”)以来,主城空气质量达到10年来最佳成绩,9条次级河流恢复清澈容貌。据了解,创建国家环境保护模范城市需满足环保投资指数、城市生活污水集中处理率等26项指标。目前,重庆已有15项指标达到了“创模”的要求。 但市环保局相关负责人表示,在331个蓝天、城市生活污水集中处理率、城市环境卫生整治等11项指标上,我市还未达标。

某校准备以“共建环保模范城,共享绿色新重庆”为主题开展一次主题探究活动。请你参与其中。

〖争当创模宣传员〗

(1)请你为该次活动写一条宣传标语。(1分)

(2)请你向身边的人宣传创模活动所体现的国策和战略有哪些?(2分)

〖争当创模践行员〗

(3)请你写一封倡议书,号召大家从我做起,从身边的小事做起,创建环保模范城。(3分)

题型:单项选择题

T11-ABS是韩国万都公司生产的型号为MGH-20干式产品,采用四通道控制技术,它对车轮制动压力调节过程包括()。

A.建压阶段

B.保压阶段

C.降压阶段

D.升压阶段

E.卸压阶段

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