在北平南苑战斗中，阵亡的国民党二十九军将领是（）A.伶麟阁 B.张自忠 C.赵登禹

如图是某生物细胞模式图，分析回答下列问题：

（1）在显微镜下观察这一细胞，当目镜的放大倍数为15、物镜的放大倍数为40时，该细胞被放大了______倍．

（2）此图所示的是______细胞．（填“植物”或“动物”）．与此类细胞相比，另一类细胞没有图中序号______所示部分．

（3）细胞的基本结构包括②______、③______和④细胞质．

（4）______让有利物质可以进入细胞，而有害物质不能进入细胞．番茄中酸味物质主要存在于[______]______中．

（5）细胞分裂时，首先是图中的[______]分裂成两个，且其中最明显的变化是______（填物质名称）的变化．

我们喝的牛奶，吃的馒头、肉中能为人体提供能量物质的是（　　）

A．水、糖类和脂肪

B．水、无机盐和维生素

C．糖类、脂肪和维生素

D．糖类、脂肪和蛋白质

[1] Look at the center circles of Diagram A and Diagram B. Which of the centre circles looks larger?

[2] Take a first look and you probably think that the centre circle in Diagram A is smaller than that in Diagram B. In fact, they are exactly the same size.

[3]Then look at the picture on the right.What do you see? A vase? Or two faces? Does the picture change quickly from one to the other again and again? Maybe or maybe not, but you can see them at the same time.

[4]“What’s happening? Is something wrong with my eyes?” You may wonder at what you see. Don’t worry. Here is how it goes:

[5]When we look at things, our eyes send messages to our brains and then our brains interpret (解释) the information. However, sometimes our brains interpret the received information in a wrong way. It seems that our eyes are playing a joke on us. This often happens and we call it “Visual illusion(幻觉)”.

[6] Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies Jurassic Park and Honey J shrunk the kids just make use of illusions.

66. In which column of a magazine can you read the above text?

A. Culture.          B. Science.     C. Humour.    D. Education.

67. The centre circle in Diagram A looks smaller than that in Diagram B, That’s because____.

A. something is wrong with our eyes

B. the two circles are not of the same size

C. our brains interpret the information wrongly

D. pictures change quickly from one to the other

68. In the picture on the right, it seems that Line AB is shorter than lane

CD, but in fact lane AB is as long as Line CD. Which paragraph

can explain what has happened to our eyes?

A. The second one.             B. The third one.

C. The fifth one.                    D. The sixth one.

69. What’s the right order according to the text?

a. We look at things with our eyes.      

b. Our brains interpret the messages.

c. Our brains tell us what we have seen.  

d. Our eyes send messages to our brains.

A. a-d-b-c     B c-a-b-d       C a-c-d-b       D. b-e-a-d

70. Movie makers make use of visual illusions to        .

A. help the actors look better             B. make the actors much braver

C. help the actors become stronger      D. make the actors seem different in size

急性出血坏死型胰腺炎时常出现血糖升高而血钙降低。

单个字符E5H用与子站向主站传输（肯定/否定）的确认帧。