下面这段文字的恰当顺序是（     ）

①凡职业没有不神圣的，凡职业没有不是可敬的。唯其如此，所以我们对于各种职业，没有什么分别拣择。②因为自己的才能、境地，做一种劳作做到圆满，便是天地间第一等人。③至于我该做哪一种劳作呢？全看我的才能何如，境地何如。④总之，人生在世，是要天天劳作的。⑤劳作便是功德，不劳作便是罪恶。

①____；

②____．

H₅N₁病毒是一种可以传染人的高致病型禽流感病毒，为RNA病毒。H₅N₁病毒平均每年有10次变异。下列有关叙述正确的是（   ）

陕西省在建设社会主义新农村的过程中提出“一村一品”工程，反对“千村一面”的建设模式，从哲学上看这体现了（   ）

阅读下面材料, 从A、B、C、D四个选项中选出最佳选项。

    Jumping rope(绳子)is a sport any student can learn to do．You can jump alone or with a friend．You can also help turn a long rope for many others to jump over．If you jump alone, you will need a short rope which should be just long enough for you．

    A rope should be turned slowly．It must also be turned high enough to let you jump safely．Turning the rope safely needs careful timing．In rope jumping, timing means turning the rope slowly enough so that you can jump over it at the right time without its hitting your feet．

  You will notice that when you jump rope, you breathe(呼吸)faster and your face has a healthy colour．But, if you jump too many times at first, you will get too tired．You must learn when to stop for rest(休息)before you jump again．As you practice, you can increase the number(次数)of times you jump without resting．