电子商务可以从两个方面来获得市场增值

以下程序的功能是：求出数组x中各相邻两个元素的和，依次存放到a数组中，然后输出．请填空。
main()
int x[10]，a[9]，I；
for(i=0；i＜10；i++)
scanf("%d"，＆x([i])；
for(i=1；i＜10；i++)
a[i-1]=x[i]+______；
for(i=0；i＜9；i++)
printf("%d"，a[i])；
printf("\n")；

阅读理解。

Dear Jim,

     How is it going?

     It's winter in Toronto. It's snowing and cold. People are wearing coats, scarves and gloves. But we are all

having a good time. Some kids are making a snowman (堆雪人).Some are throwing snowballs (扔雪球). My

brothers are skiing (滑雪). My mother is cooking for US. She is cooking hot food. It's very delicious.

     I hope you can come and visit us.

                                                                                                                                Love,

                                                                                                                                John

1. Who writes the letter?

    ___________________________________________

2. What's the weather like in Toronto?

    ___________________________________________

3. Are the kids playing basketball?

     __________________________________________

4. What's John's mother doing?

   ____________________________________________

5. What are people wearing?

    ___________________________________________

涉嫌恐怖融资可疑交易的主要特征可以从以下哪些角度分析（）

A．帐户及存取款特征

B．电子汇兑特征

C．行为异常表现

D．敏感国家或地区

局域网的网络模式主要有（）和（）两种结构。

简述艺术传播的要素和主要方式。