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【简答题】
选择方框中的单词，用其正确形式完成下列句子。 eat, look, mean, take, water, exercise, watch, tired, like, from, sleep, sore,illness, advice 1. The doctor _______ over Grandpa Li carefully. 2. If you want to be healthier, you must take more ________. 3. Mother felt _______ after she did so much housework. 4. In ten minutes he was fast ________. He was too tired. 5. I was busy _______ trees on the hill. 6. We had to work for hours to stop the ship _______ going down. 7. She looks _______ her sister, but she is much younger. 8. What do you _______? I can't understand. 9. The doctor asked me ________ more exercise every day. 10. She was hungry, but she didn't feel like ________ anything.
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【简答题】在我们的章节教学中,自我认知主要讲述了哪四个方面
【简答题】分解因式：ax 2 +ax-b-bx=（ax 2 -bx）+（______）=（______）（______）．
【单选题】已知a＞0，则x 0 满足关于x的方程ax=b的充要条件是（ ）
A.
?x∈R， 1 2 a x 2 -bx≥ 1 2 a x 20 -b x 0
B.
?x∈R， 1 2 a x 2 -bx≤ 1 2 a x 20 -b x 0
C.
?x∈R， 1 2 a x 2 -bx≥ 1 2 a x 20 -b x 0
D.
?x∈R， 1 2 a x 2 -bx≤ 1 2 a x 20 -b x 0