麻花钻主切削刃上前角，接近横刃处为（）。A、-10° B、-15° C、-25° D、-3

根据材料完成下列各题。

Beethoven

Born in 1770 in Germany

A  musician (音乐家)

Died in 1827

Florence Nightingale

Born in Italy on May 12th, 1820

An English nurse

Died in 1910

Bill Gates

Born in I955 in the USA

Wrote Business @ the Speed of Thought

Owns Microsoft

Thomas Edison

Born in 1847 in the USA

Made over 1,000 inventions (发明)

Died in 1931

Yao Ming

Born on September 12th, 1980 in Shanghai, China

A basketball player

Played for the Houston Rockets, the USA

小题1:Thomas Edison is from _      _.

A．Canada

B．Italy

C．America

D．China小题2:The             was born in 1770.

A．musician

B．nurse

C．businessman

D．scientist小题3:Business@ the Speed of Thought is the name of a_______.

A．song

B．book

C．school

D．film小题4:Nightingale died in _       _

A．1931

B．1827

C．1847

D．1910小题5:Which of the following is TRUE?

A．Yao Ming is a football player.

B．Edison made over l, 000 inventions.

C．Nightingale was a scientist.

D．Bill Gates worked in Microsoft in 1955.

下列各句没有语病的一项是（    ）

A．前不久，在加拿大召开的有20个国家400多位科学家参加的第八届激光学术会议上，这两篇论文受到高度重视，给予了颇高评价。

B．如果不重视网络道德建设，一些道德败坏现象及消极落后思想就可能通过网络影响人们的身心健康，违反正常的社会秩序，损害改革发展的大局。

C．广东国投破产事件暴露了中国金融业的风险隐患，为非银行金融机构经营管理提供了教训，向我国金融业敲响了警钟。

D．在技术革新中，公司组织有关人员围绕以提高产品质量为中心，对工艺设计、设备保养和质量检测等部门进行了调顿。

—Good morning, I'm Jack Brown, your new teacher.            

—Good morning,    _     .           [ ]

A.  Mr Jack                            

B.  Mr Brown            

C.  Teacher Jack                      

D.  Teacher Brown

在口腔健康调查中由于调查对象的代表性差，导致调查结果与实际情况不符，这属于（）

A.随机误差

B.无应答偏倚

C.选择性偏倚

D.检查者之间偏性

E.检查者本身偏性

以主人公赵惠明的日记暴露国民党特务统治黑幕的小说是（）。

A.《第四病室》 

B.《蚀》 

C.《腐蚀》 

D.《灭亡》