已知函数f(x)=cos(2x-π3)+sin2x-cos2x.(I)求出f(x

题型:解答题

问题:

已知函数f(x)=cos(2x-
π
3
)+sin2x-cos2x

(I)求出f(x)的最小正周期及函数f(x)图象的对称中心;
(II)设g(x)=f(x+φ),若函数g(x)为偶函数,求满足条件的最小正数φ的值.
考点:任意角的三角函数正弦、余弦函数的图象与性质(定义域、值域、单调性、奇偶性等)
题型:解答题

Do you still remember the disaster(灾难)several years ago? In Indonesia (印度尼西亚) thousands of people were killed by the tsunami(海啸) that washed people out to sea and pulled children out of their parents’ arms. “The weather was fine with no clouds .There was no warning and suddenly the sea water just hit the city. In some parts the water was as high as two meters.” a man in the city said. “Sadli, an official at the hospital, said many of the dead in the city were children under the age of ten.” “Maybe the children were being carried by their hold but they fell over in the water and couldn’t hold on to their children .All the dead children drawed.” said Sadli. Officials said hundreds of houses had been swept away the force (力量) of five –meter –high waves across Aceh, which lies on the northern tip (末端)of Sumatra Island . “Tens of people saw the rushing water and didn’t run to high ground .Instead, they kept watching it .Several of my workmates are missing.”  Lelana said by telephone.

小题1:According to the passage, ______were missing in the tsunami.

A.some officials

B.some of Sadli’s friends

C.some children under the age of ten

D.some of Lelana’s workmates小题2:In the tsunami, ____ _swept away hundreds of houses.

A.huge waves

B.strong winds

C.heavy rain

D.rushing river water小题3:“…. There was no   warning and suddenly the sea water was as high as two meters.”“Warning”here means ________.

A. 预兆       B. 借鉴       C 教导          D 教训

小题4:“…but they fell over in the water and couldn’t hold on to their children.”

“They”here refers to ______.

A. officials   B children

C. the dead   D. the children’s parents

小题5:Some people saw the rushing water and didn’t run to high grounds because _____.

A.they couldn’t run fast

B.the ground was too high to reach

C.they didn’t know they were in danger

D.the rushing water stopped them from running.

题型:解答题

下列不属于现代流行病学基本原理的是()

A.疾病和健康在人群中的分布原理

B.疾病的发病过程

C.疾病的生态学

D.病因论

E.疾病的治疗原理

题型:解答题

对于在中国境内未设立机构、场所的,或者虽设立机构、场所但取得的所得与其所设机构、场所没有实际联系的非居民企业的所得,计算应纳税所得额的方法正确的有()。

A.转让财产所得,以收入全额为应纳税所得额

B.利息所得,以收入全额为应纳税所得额

C.租金所得,以收入全额为应纳税所得额

D.特许权使用费所得,以收入全额为应纳税所得额

题型:解答题

这个标志是何含义?()

A.左侧通行

B.不准通行

C.两侧通行

D.右侧通行

题型:解答题

2002年12月,某保险公司(以下简称为“A公司”)为本单位女职工投保疾病普查保险,投保人和保险人均为该保险公司,被保险人和受益人则是所有女职工,保险期限为2年,保险费每人100元,由保险公司从工会经费里扣除。2003年5月,该公司一名女职工某甲因搬家到外地而调往其他单位工作。2003年11月,某甲在单位的例行体检中被查出患有乳腺癌,她认为自己的疾病符合原单位购买的保险赔偿条件。某甲的丈夫某乙立即向A公司申请给付保险金。然而A公司却拒绝理赔,原因是自从某甲调离A公司后,该公司即以某甲已不属于本单位职工从而本单位不具有保险利益为由,在没有通知某甲的情况下以业务批单的形式解除了保险合同。因此A公司以合同解除为由而拒绝给付保险金。后某乙多次找A公司交涉,A公司负责人则声称该保险合同本身就是无效合同,理由是投保人和保险人为一人即A公司,自己和自己签订的合同当然自始无效。无奈之下,某甲只好提起诉讼。

该保险合同是否真的自始无效?

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