若tanα=2,则sin(π-α)+5cos(2π-α)3cos(π-α)-si

题型:填空题

问题:

若tanα=2,则
sin(π-α)+5cos(2π-α)
3cos(π-α)-sin(-α)
=______.
考点:同角三角函数的基本关系式三角函数的诱导公式
题型:填空题

男性,25岁,因腰部被刺后伤口待续溢出淡红色液体,血压100/70mmHg脉搏100次/分。出现休克症状。左上腹有压痛,但无肌紧张和反跳痛。

该病人最可能的损伤部位是()

A.左下肺

B.脾脏

C.降结肠

D.左输尿管

E.左肾

题型:填空题

The only survivor of one of the two Sandy Hook Elementary School first-grade classrooms where Adam Lanza shot and killed 20 children tricked the gunman by playing dead,the girl’s pastor(牧师)said.

“She ran out of the school building covered from head to toe with blood and the first thing she said to her mom was,“Mommy,I’m OK but all my friends are dead” Pastor Jim Solomon told ABC News’ Lara Spencer this weekend

“Somehow,at that moment, by God’s grace,she was able to act as she was already dead.”he said.

The girl, a 6-year-old whose name is not being announced for privacy(隐私)reasons,was the first student to appear from the lockdown(封锁)at Sandy Hook,Solomon said.He said the young girl described the shooter to her mom in a way that only a young child can.

“Well, she saw someone who she felt was angry and someone she felt was very mad,”Solomon said. “I think it's impossible without the help of God. She has wisdom beyond her years, for sure’’

Of the 20 children killed on Friday in the Newtown,Conn., school, eight were boys and l2 were girls Six staff members,all female, were also killed. The gunman,whose mother was also killed by him before he went to the schoo1 classrooms, was found dead at the present spot.

“The mom told me—and I thought this was very insightful(有深刻见解的)—that she was suffering from what she felt was survivor’s guilt because so many of her friends no longer have their children but she has hers,” Solomon said how the girl’s mother and father are handling the trauma(伤害).“I don’t know whether l would have the type of faith that they have if the same thing happened to me.”

小题1:How did the girl manage to avoid being shot?

A.She pretended to be dead

B.She hid herself under the desk

C.She rushed out of the school building in time

D.She persuaded the shooter into not shooting her.小题2:Which of the following best describes the girl ?

A.Talented and innocent

B.Serious and insightful

C.Active and happy

D.Clever and brave小题3:The killing case which happened in Sandy Hook Elementary School         .

A.ended up with the shooter being killed

B.was a shooting by a group of people

C.was due to the gunman getting angry with the pupils

D.was not open to the public for the moment小题4:Which of the following is TRUE about the girl’s mom?

A.She was disappointed with the pastor

B.She felt very dissatisfied with other parents

C.She felt terribly sorry for those who had lost their children

D.She strongly condemned the police.小题5:What can we know from the text?

A.It is not difficult for the parents to handle the trauma.

B.The girl’s parents have asked for help from their pastor.

C.The girl has helped the police in catching the gunman.

D.The gunman has worked in the school.

题型:填空题

某公司拟进行股票投资,计划购买甲、乙、丙三种股票组成投资组合,已知三种股票的口系数分别为1.5、1.0和0.5,该投资组合甲、乙、丙三种股票的投资比重分别为50%、20%、30%,全市场组合的预期收益率为9%,无风险收益率为4%。根据上述资料,回答下列问题。

投资者在投资甲股票时所要求的均衡收益率应当是()。

A.4% 

B.9% 

C.11.5% 

D.13%

题型:填空题

钻进施工中防止掉钻事故发生的安全措施有()

A.设备状态良好

B.钻杆、中心管质量合格

C.严格按操作规程操作

D.严格交接班制度

题型:填空题

开箱验货时若发现实物与装箱单不符合,则填写《补发货申请单》,并向相关事业部用服部反映,申请补发。

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