蛋腐败时会产生一种无色、有臭鸡蛋气味的硫化氢气体（H2S ），H2S 气体是一种

下列关于真核生物的基因的说法，不正确的是[ ]

A．基因是有遗传效应的染色体片段

B．细胞内的基因主要分布在染色体上

C．基因能通过控制蛋白质的结构控制生物的性状

D．基因中的碱基排列顺序蕴藏着遗传信息

请在“答题”菜单下选择“演示文稿”命令，然后按照题目要求再打开相应的命令，完成下面的内容，具体要求如下：

注意：下面出现的所有文件都必须保存在考生文件夹下。

打开下的演示文稿yswg.ppt，按照下列要求完成对此文稿的修饰并保存。

1．在第一张幻灯片前面插入一张幻灯片，其版式为“空白”，并插入形状为“波形2”的艺术字“电视媒体传播文化”(位置为水平：2.5厘米，度量依据：左上角，垂直：4厘米，度量依据：左上角)。将第二张幻灯片的版式改为“标题，剪贴画与文本”，文本的字体设置为“仿宋_GB2312”，字号设置成24磅，加粗。在剪贴画区域插入剪贴画“学院”类的“书本”，图片的动画设为“进入效果_华丽型_螺旋飞入”。将第四张幻灯片的版式改为“标题，文本与剪贴画”，将第三张幻灯片的图片移到第四张幻灯片剪贴画区域，图片的动画设为“进入效果基本型擦除”、“自左侧”。

2．删除第三张幻灯片，使用“Pixel” 模板修饰全文，全部幻灯片切换效果为“盒状展开”。

有以下程序
main()
int i,s=0,t[]=1,2,3,4,5,6,7,8,9 ;
for(i=0;i＜9;i＋=2) s＋=*(t＋i);
printf("%d\n",s);

A) 45 B) 20 C) 25D) 36

For the people who have never traveled across the Atlantic the voyage is a fantasy. But for the people who cross it frequently one crossing of the Atlantic is very much like another, and they do not make the voyage for the (56) of its interest. Most of us are quite happy when we feel (57) to go to bed and pleased when the journey (58) . On the first night this time I felt especially lazy and went to bed (59) earlier than usual. When I (60) my cabin, I was surprised (61) that I was to have a companion during my trip, which made me feel a little unhappy. I had expected (62) but there was a suitcase (63) mine in the opposite corner. I wondered who he could be and what he would be like. Soon afterwards he came in. He was the sort of man you might meet (64) , except that he was wearing (65) good clothes that I made up my mind that we would not (66) whoever he was and did not say (67) . As I had expected, he did not talk to me either but went to bed immediately.
I suppose I slept for several hours because when I woke up it was already the middle of the night. I felt cold but covered (68) as well as I could and tried to go back to sleep. Then I realized that a (69) was coming from the window opposite. I thought perhaps I had forgotten (70) the door, so I got up (71) the door but found it already locked from the inside. The cold air was coming from the window opposite. I crossed the room and (72) the moon shone through it on to the other bed. (73) there. It took me a minute or two to (74) the door myself. I realized that my companion (75) through the window into the sea.

A. draft B. voice C. air D. sound

用于加工高速切削高温合金和热喷涂材料工件，应选用（）非金属材料。

A.氮化硼

B.人造金刚石

C.陶粒

D.立方氮化硼