下列属于标准件的是() A.圆柱销 B.蜗杆 C.凸轮 D.链轮

题型:单项选择题

问题:

下列属于标准件的是()

A.圆柱销

B.蜗杆

C.凸轮

D.链轮

考点:内河船员考试轮机基础轮机基础题库
题型:单项选择题

第Ⅱ卷

第三部分 写作(共三节,满分55分)

第一节 单词拼写(共10小题;每小题1分,满分10分)

根据下列句子及所给汉语注释,在横线上写出空缺处各单词的正确形式(每空只写一词)。

66. He turned quickly away, more in      (悲痛)than in anger.

67. Greece is a        (欧洲)country with a very long history.

68. Can you tell the      (相似之处)and the differences as well?

69. This is an     (难忘的) holiday.

70. Nothing can change our minds. We’re    (决心)to fight for our own rights.

71. Last year , China’s tourism earned 17.8 billon US dollars,      (排名)fifth in the world.

72. It is bad for his health to play computer games     the night.(整夜)

73. The army was well-trained and well-armed, and had little difficulty     (战胜) their enemy.

74.      (致力于)to his research, he had little time to spend together with his family.

75. Vegetables    (含有) a lot of vitamins.

题型:单项选择题

肾小管酸中毒的描述不正确的是()

A.原发病例常在生后即有临床表现

B.慢性代谢性酸中毒:厌食、恶心、呕吐、腹泻、便秘、生长发育迟缓

C.电解质紊乱:低钾血症、高氯血症

D.使用维生素D治疗可防止佝偻病、骨骼畸形

E.易出现尿路感染与梗阻性肾病

题型:单项选择题

A.O2的消耗速率等于NO的消耗速率

B.容器中存在N2,O2,NO三种气体

C.容器内混合物总的物质的量不随时间而改变

D.单位时间内每生成n mol N2的同时生成2n mol NO

题型:单项选择题

《汽车金融公司管理办法》规定,经银监会批准,汽车金融公司可以从事( )等业务。

A.接受境内公众存款

B.提供购车贷款

C.办理汽车生产商贷款

D.代理政策性银行业务

E.为贷款购车提供担保

题型:单项选择题

普通水泥砂浆施工的施工工序是什么?

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