1950年朝鲜战争爆发后，10月19日中国人民志愿军跨过（）奔赴朝鲜战场。A、丹东江

把符合要求k图形序号填在横线里．

①两组对边分别平行，有四五直角．______；

②只有一组对边平行．______；

③两组对边分别平行，没有直角．______．

①长方形 ②梯形 ③平行四边形．

Stop eating yourself stupid we all know that poor nutrition can lead to bad health and even weight gain. Now add “lack of intelligence” to the growing list. A recent study has found that what you eat could very likely play a role in how smart you are.

According to the study, rats fed a high-fat diet for 10 days showed signs of weakness and even had trouble finding food that was waiting for them.小题1: Actually a high-fat diet could weaken our intelligence--but so can a low-calorie diet. The trick appears to lie in finding a nice balance.

Here are ways to achieve that happy balance and make you smarter through diet, exercise and improving your brain power.

Figure out how many calories you need to maintain your weight. __小题2:__ If you need to drop a few pounds, take away the number you get by 400 calories; consume that number of calories each day until you drop the weight.

__小题3:__Aim for healthy foods that include good amounts of protein, fiber, fruits and vegetables, healthy whole grains, healthy fats and plenty of water. Well! Remember: All work and no play makes Jack a dull boy. Read a book. Try a new recipe. Do some puzzles. __小题4:__

Exercise regularly with a positive attitude. Aim for at least three 30-minute training sessions a week(but more is better). I like simple exercise such as walking, but anything that raises the heart rate is good. _小题5:_  Combine them! Some people like to listen to classical music such as Bach or Mozart, but rock music lovers will be happy to learn that this kind of music can help make them smarter as well.

A．You may be fond of music, too.

B．Your health depends on your exercise plan.

C．Aim to get this number of calories each day.

D．Don’t forget to exercise your mind while doing so.E．You may be wondering what this has to do with us.

F．These are all good ways to help increase your intelligence.

G．Eat the right foods in addition to getting the right number of calories.

等物质的量的乙醇、乙烷、乙炔（C₂H₂）完全燃烧消耗的氧气的物质的量之比为（　　）

A．6：7：5

B．1：1：1

C．35：30：42

D．3：5：4

如图是探究“物体动能的大小与哪些因素有关”的装置。让同一小车从斜面上不同的高度由静止开始运动，碰到同一位置的相同木块上。目的是探究小车动能的大小与   的关系；若小车推动木块移动的距离越大，说明小车对木块   越多，从而判断小车的动能越大；若水平面绝对光滑，按上述方案本实验将   （能／不能）达到探究目的。

请补充函数fun()，该函数的功能是：寻找两个整数之间的的所有素数(包括这两个整数)，把结果保存在数组bb中，函数返回素数的个数。
例如，输入6和21，则输出为：7 11 13 17 19 21。
注意：部分源程序给出如下。
请勿改动主函数main 和其他函数中的任何内容，仅在函数fun()的横线上填入所编写的若干表达式或语句。
试题程序：
#include＜conio. h＞
#include＜stdio. h＞
#define N 1000
int fun (int n, int m, int bb [N])

int i, j, k=0, flag;
for (j=n; j＜=m; j++)

【1】 ;
for (i=2; i＜j; i++)
if( 【2】 )

flag=0;
break;

if( 【3】 )
bb [k++] =j

return k;

main ()

int n=0,m=0, i, k;
int bb[N];
clrscr ();
printf ("Input n\n");
scanf ("%d", &n);
printf ("Input m\n");
scanf ("%d", &m);
for (i=0; i＜m-n; i++)
bb[i]=0;
k=fun (n, m, bb);
for (i=0; i＜k; i++)
printf ("%4d",bb [i]);