9月30日，每个中国人都应该铭记的日子：烈士纪念日！在近代以来中国历史上最黑暗的岁月里，一批又一批英烈挺身而出，他们用热血铸就的爱国情怀、民族气节、英雄气节，构成了一个民族的精神坐标！这个坐标（    ）

①是英雄们与生俱来并广为传颂的特质

②能成为中华民族生存发展的精神支柱

③传递着中华民族永恒不变的精神特质

④能展现中华民族整体风貌和精神特征

下列说法中，正确的有几项（    ）

①青蛙的红细胞中没有细胞核和众多的细胞器，可用作提取细胞膜的材料；

②可选用植物的叶肉细胞作为观察DNA和RNA在细胞中分布的实验材料；

③高倍显微镜下的动物细胞，能观察到线粒体的双层膜结构；

④高等植物的成熟细胞都有液泡和叶绿体，但没有中心体；

⑤细胞中具有双层膜结构的细胞器是叶绿体、线粒体和核膜；

⑥细胞壁都可以被纤维素酶和果胶酶分解；

⑦脂质中的磷脂和胆固醇都是组成细胞膜的成分；

⑧人体需要的氨基酸称为必需氨基酸，共8种

完形填空
    Could we look back some day and say that Warren Buffett's greatest genius(天才) was finding two talented people to replace(代替)him? These two people are Ted Weschler, aged 56，and Todd Combs，aged 46，who have been chosen by Buffett as money managers to begin to1 the key investment(投资)operations of Berkshire Hathaway.
    But how did Ted and Todd catch Buffett's2? "These are the only two persons I could find, who read as 3 as I did, " Buffett says with a laugh. Actually he's not really kidding. Both Ted and Todd spend lots of time 4.
    Ted spends half a day reading many materials like5and trade periodicals(期刊). In a recent interview，Ted 6 that to become a successful investor, one needs to be hungry, curious and read all the time. Different kinds of reading will allow you to 7things that might give you an insight(洞察力)to where a business is going in five years.
    And Todd describes himself as a book with legs. He gets up at around 7 or 8 a.m. and reads 8about 7 or 8 p.m. . After dinner; he also leads for 9 hour or two in bed.
    What's the secret for financial success? It seems that 10a habit of reading really matters.

____：64= $\frac{10}{（）}$  ____=____÷____ =0.625=____%．

选择与下列成语中加下划线词意思相同的一项。

不可名状（     ）