某台H系列起重滑轮组的规格表示为H100×8D,该起重滑轮组的结构形式是()。 A.

题型:单项选择题

问题:

某台H系列起重滑轮组的规格表示为H100×8D,该起重滑轮组的结构形式是()。

A.吊钩型开口

B.链环型开口

C.吊环型闭口

D.吊梁型闭口

考点:机电工程1H412000机电工程专业技术1H412000机电工程专业技术题库
题型:单项选择题

姜堰地区(120.08°E,32.34°N)有12月22日“过冬”的民间习俗。据此回答下列小题:

1、12月22日为北半球冬至日,太阳光直射在下列哪一纬线上[ ]

     A、北回归线

     B、赤道

     C、南回归线 

     D、本初子午线

2、该日,下列现象中与姜堰地区相符的是 [ ]

     A、白昼最短

     B、气温最低

     C、日出最早

     D、阳光直射

3、从所属温度带看,姜堰位于 [ ]

     A、热带

     B、北温带

     C、北寒带

     D、南温带

题型:单项选择题

阅读理解

     Like any good mother,when Karen found out that another baby was on the way,she did what she could

to help her 3-year-old son,Michael,prepare for a new baby.Day after day,night after night,Michael sang to

his mommy's tummy(肚子).

     Finally,Michael's little sister was born.But she was in serious condition.With sirens (警报) howling in

the night,the ambulance rushed the baby to St.Mary's Hospital.The days inched by.The little girl became

worse.The pediatric(儿科的) specialist told the parents to prepare for the worst.

     Michael kept begging about singing to his sister,but kids are not allowed in pediatric department at

St.Mary's Hospital.Karen made up her mind to take Michael to see his sister.She dressed him in an

oversized suit and marched him into the hospital.He looked like a walking laundry basket,but the head

nurse recognized him as a child and shouted,"Get that kid out of here now!"Karen rose up strong,and the

usually mild-mannered lady glared steel-eyed into the head nurse's face."He is not leaving until he sings to

his sister!"

     Karen towed Michael to his sister's bedside.He gazed at the tiny baby losing the battle to live.And

he began to sing.In the pure-hearted voice of a 3-year-old,Michael sang,"You are my sunshine,my only

sunshine.You make me happy when skies are grey."Instantly the baby girl responded.Her pulse rate

became calm and steady.Her strained breathing became smoother.

     "Keep on singing,Michael.""The other night,dear,as I lay sleeping,I dreamed I help you in my arms…

Michael's little sister relaxed as healing rest seemed to sweep over her."Keep on singin,Michael."Tears

conquered the face of the nurse."You are my sunshine, my only sunshine.Please don't take my sunshine

away."

     The next day-the very next day-the little girl was well enough to go home!

1.Which of the following can be the best title for the passage?

A.It's Hard to Raise a Baby            

B.The Miracle of a Brother's Song

C.Mother's Love                    

D.An Unforgettable Day

2.From Karen's action in the first paragraph we know that        

A.mothers often pay much attention to their newly-born babies

B.mothers often tell their children how to look after their younger brothers or sisters

C.it is good for children to learn to sing songs to babies

D.it often takes some time for a child to accept his/her newly-born brother or sister

3.The underlined word"strained"means"         ". 

A.unnatural          

B.exciting      

C.deep          

D.blocked

4.Which words can describe Michael?  

A.Naughty and annoying.              

B.Strong and brave.

C.Active and careless.                

D.Concerned and determined.

题型:单项选择题

为了对某氯化钾样品(含少量硝酸钾)进行分析,甲、乙、丙三位同学分别进行实验,他们的实验数据如下表,仔细观察和分析数据,回答下列问题:

所取固体样品的质量(g)251010
加入AgNO3溶液的质量(g)100100150
反应后所得沉淀的质量(g)14.3514.3514.35
(1)三位同学中,哪一位所用KCl与AgNO3恰好完全反应______.

(2)样品中的KCl的质量分数是多少?

题型:单项选择题

在仓储环节中,不能承接拼装、组装、包装、贴标签、销售展示等业务。

题型:单项选择题

我国专利法规定,外观设计专利权的保护范围()。

A.以外观设计专利产品为准

B.以图片和照片为准

C.以表示在图片或者照片中的该外观设计专利产品为准

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