宝钢千万吨级钢铁基地落户湛江市东海岛试验区，对我市经济的发展起到促进作用。但可能带来的环境问题是酸雨。以下关于酸雨的说法，你认为不合理的是(　）

已知命题p：∀x∈R，x²﹣a≥0，命题q：∃x∈R，x²+2ax+2﹣a=0．若命题“p∧q”是真命题，则实数a的取值范围为____．

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Nosey and the Porcupine（豪猪）

    Nosey knew that she was supposed to stay in the yard, but the gate was let open. She took a glance ____ the woods up the street. For Nosey there was nothing as wonderful as ____(dash) among the trees and sniffing（嗅）the flowers. After all, she was called Nosey for a reason. Her name described her usual, day-to-day ____(behave).

    She quietly slipped out of the yard and headed towards the woods. Soon after Nosey arrived in the woods, a butterfly landed on her nose. She reached for it, ____ it few away. Then Nosey ____(spot) it again on a berry bush. When she was within striking distance, she jumped. The butterfly fluttered out of Nosey's reach once more, but it was too late for Nosey ____(stop). She landed directly on top of the berry bush with a crash. At first, she was astonished by the sudden fall. Then she was shocked to find ____(she) face to face with a sleeping porcupine under the bush!

    The arrival of a ____(noise) visitor caused the porcupine to wake up. Nosey had ever seen a porcupine before, so she gently sniffed at it with her nose, ____ really annoyed the porcupine. He turned around and the quills（棘刺）on his tail were standing up. ____(sudden) Nosey found herself with a nose full of quills.

在△ABC和△DEF中，下列给出的条件，能用“SAS”判定这两个三角形全等的是（     ）

完形填空
      As a child, I started learning to play the piano, my favorite musical  1 ,but I was forced to give up when I started my middle school  2  I could concentrate more on my studies.
      It’s one of my biggest  3  to stop practicing the piano when I recall sadly today. During the following years, I kept telling my piano teacher that I would  4  . However, I didn’t keep my promise because I was 5  with my study.  6  I lost touch with my teacher. Some years later, my teacher died. I was very sad because I lost such a good teacher. She was a very warm and gentle person. It hurts me to think she may have been 7  that I never returned. I haven't taken lessons since then but to be honest, I  8  to. Sitting at the piano, I couldn't help recalling  many  9  times of my practising at home and playing before my teacher and one time my teacher 10  me after I played entire pieces of music wrong in front of her colleagues. I was so  11  that I could hardly say anything. But her  12  helped me ease my shame. These memories, 13, good or bad, never caused my  14  for playing the piano again.
      This thought then led me to think that  15 is like music, and that we all try to play different  16  in the instrument of our life. Sometimes the pitch(音高) is    17 when we play it well, but sometimes we are out of tone. However, we all continue to create our own  18  style of music. No matter what style our music is, it is  19 that we sing the songs of joy, quietness and love. Though I may never make it back to piano lessons, it doesn’t  20  that I’ve stopped making music.