题目

41.He is so                       (固执的) that no one can persuade him to do anything. 42.I _____(更喜欢) the red dress to the green one because it fits me better. 43.The _______ (窗帘) are all very dirty. 44.According to the _____(时间表) we should finish it. 45.We left last ________(星期三). 46.Go _______(直接) along this road and turn left at the traffic lights. 47.I think it is wrong of you to ______ (忽视，不重视)your parents’ advice. 48.He _________（最终）convinced her that reading is a pleasure. 49.Whatever we said ,he______13．已知$f（x）=\left\{\begin{array}{l}{x^2}-2ax，x≥2\\ 4x-6，x＜2\end{array}\right.$在定义域R上是增函数，则a的取值范围是$a≤\frac{1}{2}$．