若关于x的不等式ax2-6x+a2<0的解集是(1,m),则m=______.

题型:填空题

问题:

若关于x的不等式ax2-6x+a2<0的解集是(1,m),则m=______.

考点:一元二次不等式及其解法
题型:填空题

如果你翻动花园、庭院中的花盆或石块,常常会看到一些身体略扁、长椭圆形、灰褐色或黑色的小动物在爬行,这就是鼠妇,又叫潮虫.当你搬开花盆或石块,鼠妇很快就爬走了.这是为什么呢?是因为环境变明亮了吗?某同学对此进行了探究,请你将他探究活动的过程写完整.

(1)提出问题:鼠妇会选择阴暗的环境吗?

(2)作出假设:______.

(3)制订实施探究方案:在铁盘内放上一层湿土,一侧盖上不透光的纸板,另一侧盖上透明的玻璃板,在铁盘两侧中央处各放5只鼠妇,观察鼠妇的行为.这样,在盒里就形成了______和______两种环境.该实验的变量是______.

如果在铁盘两侧中央各放1只鼠妇______(填:是、否)可以得出准确的结论?为什么?______

(4)分析结果,得出结论:该同学对上述实验重复了5次,结果如下表.

环境第一次第二次第三次第四次第五次
明亮0只1只2只0只2只
阴暗10只9只8只10只8只
为了使实验结论更准确,应对上述数据作怎样的处理?______

(5)结论:______对鼠妇的生活有影响,鼠妇喜欢在______的环境中生活.

(6)为什么实验结束后把鼠妇放回自然?______

(7)为什么实验结束后要洗手?______.

题型:填空题

男性,18岁,午后发热盗汗2个月,左胸痛伴胸闷3周。B超、X线胸片发现左侧中等量胸腔积液。

下列哪项胸腔积液化验结果与病情不符()

A.草黄色,Rivalta反应阳性

B.细胞数WBC0.85×106/L,N0.34

C.比重1.014

D.腺苷脱氨酶>45U/L

E.pH7.0

题型:填空题

商品质量检验的工作程序为:()

题型:填空题

某开放式基金的管理费率为1.2%,申购费率1.3%,托管费率0.3%。某投资者以20000元现金申购该基金,若当日基金份额净值为1.290元,则该投资者得到的基金份额是( )份。

A.11549.54

B.12546.54

C.15304.91

D.15546.91

题型:填空题

Valentine’s Day was the time my father chose to show his love for the special people in his life. Over the years I fondly thought (31) him as my "Valentine man".

My first recollection of the magic he could bring to Valentine’s Day came when I was six. That morning at the breakfast table I found a card and a gift-wrapped package at my chair. The card was (32) "Love, Dad" and the gift was a ring with a small piece of red glass to represent my birthstone, a ruby.There is (33) difference between red glass and rubies to a child of six, and I remember wearing that ring with pride that all the cards in the world (34) not surpass.

As I grew older, the gifts gave (35) to heart-shaped boxes filled with my favorite chocolate and always included a (36) card signed "Love,Dad". In those years my thank-you became more of a perfunctory response. The cards seemed less (37) , and I took for granted that the Valentine would always be there. I had (38) my hopes and dreams in receiving cards and gifts from "significant others" and "Love, Dad" just didn’t seem quite enough.His final card remains on my desk today. It’s a (39) of how special fathers ean be and how important it has been to me over the years to know that I had a father who continued a tradition of love with simple acts of understanding and an ability to express happiness over the people in his life.Those things never (40) , nor does the memory of a man who never tried being my Valentine.

38()。

A. let

B. kept

C. plaeed

D. remembered

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