— Will you attend the meeting this afternoon?— But I __________ anything about it yet.
A:wasn't told
B:haven't been told
C:didn't tell
D:won't tell
①正确对待学习压力
②克服考试焦虑
③培养正确的学习观念
④认识到自己拥有的学习权利本身就是一种幸福
⑴____A. always B. often C. fruit
⑵____A. vegetable B. first C.fruit
⑶____A. eight B.three C.first
⑷____A. his B. your C.I
⑸____A. drink B.sport C. eat
光从空气斜射入水中,如图所示.请在图中画出折射光线的大致方向,(要求:画出法线,标明入射角、折射角)
A、相等 B、不相等