【简答题】选词填空。 decide, pronounce, forget, improve, impress 1. I can't _____ some of the words. 2. So I _____ to take lots of grammar notes yesterday. 3. I always _____ a lot of new words. 4. My teacher is ...
【简答题】已知直线l 1 :y=2x+3,l 2 与l 1 关于直线y=-x对称,直线l 3 ⊥l 2 ,则l 3 的斜率是 ______.
【简答题】某直线过点(2,-1),其斜率是另一条直线y=-2x-3的斜率的相反数,则此直线的方程是
【简答题】( impress ) As I grew to know him better, I discovered that my first __ __ __ __ __ of him had been wrong.
【单选题】二战以后,大多数国家都把 ( )当作关键货币