单词拼写。

1. He is very optimistic, so he always a____________ a positive attitude to life.

2. The lady was a______________ of killing her husband when he was asleep.

3. In the end, he gave away his p_____________ to his country, that is, all that he had.

4. By nature, he likes challenges. It is t____________ of him to take hard jobs.

5. The nurse a_____________ the ointment to the wound.

6. He made an a____________ on the world record, and finally succeeded.

7. The boss d_____________ that Mary (should) finish the task within a week.

作为班干部，应该时常关心同学，为人处世多些“人情味”，而不是咄咄逼人，这样才真正俘获了他人的心。这体现了（）效应。

A.首因效应

B.从众效应

C.南风效应

D.光环效应