焊点电气性能不好,容易形成() A.拉尖 B.空洞 C.冷焊 D.虚焊

题型:单项选择题

问题:

焊点电气性能不好,容易形成()

A.拉尖

B.空洞

C.冷焊

D.虚焊

考点:电子设备装接工电子设备装接工(初级)电子设备装接工(初级)题库
题型:单项选择题

北京的风味美食种类可多了,可以这样说,中国各地的佳肴美味都落户在北京,这是为什么呢?因为北京是历史上的古都,皇帝住在北京,所以名吃、名菜多极了,其中最有名的是北京烤鸭。
一提起北京烤鸭来,那可是名扬天下的中国名菜。据说,这种风味独特的烤鸭已经有好几百年的历史了。最早在南宋的时候,就有人在南方的一些城市沿街叫卖;后来明成祖定都北京后,烤鸭也被带到了北京。到了清朝,那些文武百官也都喜欢吃烤鸭,烤鸭成了宴席上不可缺少的珍品。以后,烤鸭慢慢地从宫廷里传到了民间,于是,北京的街市上便出现了卖烤鸭的餐馆。在清咸丰五年(1855年),在北京前门外开设了专售烤鸭的便宜坊饭馆。隔了11年以后,前门外又开设了一家卖烤鸭的全聚德饭馆。这里的烤鸭手艺更精更妙。从那以后,“全聚德”这个字号也就和北京烤鸭一起,名扬四海了。
说起这全聚德烤鸭店的烤鸭来,那可是中外闻名。许多人都知道这里的烤鸭特别好吃,可是关于它的来历,恐怕就不是知道得那么清楚了。
当时的北京前门外,有一位专门经营鸡鸭行业的人,名叫杨全仁,他待人和气,又很会做生意,所以买卖很兴旺。因为手里有了一些钱,他就在当时的肉市街上买了一座铺面,准备开烤鸭店。为了烤鸭店的生意兴旺,他特地请人来给取了店名,来人起了个“全聚德”的名字,意思是说,这地方是闹市街头,是个聚合不散,全而不缺的好地方,只要做生意就会兴旺,财源滚滚。这“全聚德”的名字起得好听,也正中主人杨全仁的心意。他就请人把这三个大字写成金字大匾,高高兴兴地悬挂在店门之上,又请了一位清官御膳房里有名的厨师,精心地烤出鸭子。全聚德的烤鸭,作法非常讲究,它是挂炉烤鸭,是凭着炉墙的热力烘烤鸭子,炉里的温度先高后低,烤出的鸭子外皮酥脆,内层丰满,肉又鲜又嫩,肥而不腻。而且炉里烧的不是普通的木柴,而是用枣树、桃树、梨树等果木炭火烤制。这样一来,烤出来的鸭子颜色是枣红的,鲜艳好看,油亮油亮的。外焦里嫩,有一种特殊的果木香味。烤鸭要趁着热吃,把鸭肉削成片,蘸上甜面酱,加上大葱白,卷在特制的荷叶形的小薄饼里,趁着热吃起来,不但鲜美无比,而且营养丰富。后来,全聚德里又有了“全鸭席”,那风味独特的鸭肝、鸭掌、鸭翅,以及那又香又鲜的鸭骨汤,别有一番滋味,叫品尝过的人终身难忘。好多年过去了,全聚德成了北京最负盛名的烤鸭店,凡是来北京的人如果不尝尝北京烤鸭,都会觉得很遗憾。

为什么要取名叫全聚德?

题型:单项选择题

The report came to the British on May 21, 1941. The German battleship Bismarck, the most powerful warship in the world, was moving out into the Atlantic Ocean. Her task: to destroy the ships carrying supplies from the United States to war-torn England.

The British had feared such a task. No warship they had could match the Bismarck in speed in firepower. The Bismarck had eight 15-inch guns and 81 smaller guns. She could move at 31 nautical miles (海里) an hour. She was believed to be unsinkable.However, the British had to sink her. They sent out a task force headed by their best battleship Hood to hunt down the Bismarck. On May 24, the Hood found the Bismarck.

It was a meeting that the German commander Luetjens did not want to see. His orders were to destroy the British ships that were carrying supplies, but to stay away from a fight with British warships.

The battle didn't last long. The Bismarck's first torpedo (鱼雷) hit the Hood, which went down taking all but three of her 1 419 men with her.

But in the fight, the Bismarck was slightly damaged (损坏). Her commander decided to run for repair to France, which had at that time been taken by the Germans. The British force followed her. However, because of the Bismarck's speed and the heavy fog, they lost sight of her.

For two days, every British ship in the Atlantic tried to find the Bismarck, but with no success. Finally, she was sighted by a plane from Ireland. Trying to slow the Bismarck down so that their ships could catch up with her, the British fired at her from the air. The Bismarck was hit.

On the morning of May 27, the last battle was fought. Four British ships fired on the Bismarck, and she was finally sunk.

61. The Bismarck sailed into the Atlantic Ocean _______.

A.   to sink the Hood                                                           B. to gain control of France

C. to cut off American supplies to British                               D. to stop British warship reaching German

62. Many people believed that Bismarck could not be defeated because she _______.

A. was fast and powerful                                               B. had more men on board

C. was under Luetjens' command                                    D. had biggest guns than other ships

63. We learn from the text that on 24 May _______.

A. the British won the battle against the Bismarck

B. the Bismarck won the battle against the British

C. the British gunfire damaged the Bismarck seriously

D. the Bismarck succeeded in keeping away from the British

64. Luetjens tried to sail to France in order to _______.

A. have the ship repaired                                               B. join the other Germans

C. get help from the French                                           D. get away from the British

65. Which of the following is the immediate cause of the sinking of the Bismarck?

A. The British air strikes.                                             B. The damage done by the Hood.

C. Gunfire from four British ships.                                D. Luetjens' decision to run for France.

题型:单项选择题

下列行为中,构成侵犯商标权的有()

A、甲销售伪造的注册商标标识

B、乙擅自制造他人注册商标标识

C、丙未经商标注册人同意,更换其注册商标,并将该更换的商标的商品又投入市场

D、丁在类似商品上将他人注册商标近似的标志作为商品装潢使用,误导公众

题型:单项选择题

一人拿一张百元钞票到商店买了35元的东西,店主由于手头没有零钱,便拿这张百元钞票到隔壁的小摊贩那里换了100元零钱,并找回了那人65元钱。那人拿着35元的东西和65元零钱走了。过了一会儿,隔壁小摊贩找到店主,说刚才店主拿来换零的百元钞票为假币。店主仔细一看,果然是假钞。店主只好又找了一张真的百元钞票给小摊贩,那么如果不计商品利润,在整个过程中,店主一共亏了()元钱财。

A.200

B.165

C.135

D.100

题型:单项选择题

设Sn是等差数列an的前n项和,若=()。

A.A

B.B

C.C

D.D

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