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• 20．质量为M、内壁间距为L的箱子静止于光滑的水平面上，箱子中间有一质量为m的小物块，小物块与箱子底板间的动摩擦因数为μ。初垄擔小物块停在箱嬧正中间，如图所示。现给小物块一水平向右的初速度v，小物块与
• 14. 原子核 与氘核 反应生成一个α粒子和一个质子。由此可知(A)A=2，Z=1 (B) A=2，Z=2 (C) A=3，Z=3 (D) A=3，Z=2
• 7. 下面均是正丁烷与氧气反应的热化学方程式（25℃,101kPa）：①②③④由此判断，正丁烷的燃烧热是(A) -2878kJ/mol (B) -2658kJ/mol (C) -1746kJ/mol
• 1航空公司在實施7P管理之前必須先進行何項分析，以下何者有誤?(A)市場區隔(marketsegmentation)(B)市場開發-市場研究(marketresearch)(C)確認顧客(identi
• 30. A the last moment, Tom decided to _______ a new character to make the story seem more likely.(A)
• 8. 在相同条件下，下列说法错误的是(A)氯气在饱和食盐水中的溶解度小于在纯水中的溶解度(B)碘在碘化钾溶液中的溶解度大于在纯水中的溶解度(C)醋酸在醋酸溶液中电离的程度大于在纯水中电离的程度(D)工
• 22. They might just have a place _______ on the writing course — why don't you give it a try?(A
• 31. India attained _______ independence in 1947, after _______ long struggle.(A) 不填; a (B) the; a (C
• 23. Try not to cough more than you can _______ since it may cause problems to your lungs.(A) check (
• 32. There's no way of knowing why one man makes an important discovery _______ another man, als
• 24. If we _______ now to protect the environment, we'll live to regret it.(A) hadn't acted
• 33. "You can't judge a book by its cover," _______.(A) as the saying goes old (B) goe
• 34. It was a real race _______ time to get the project done. Luckily, we made it.(A) over (B) by (C)
• 12. 短周期元素W 、X、 Y、 Z的原子序数依次增大，且W 、X、 Y、 Z的最外层电子数与其电子层数的比值依次为2 、3、 4、 2（不考虑零族元素）。下列关于这些元素的叙述错误的是(A)X和其
• 26. Police have found _______ appears to be the lost ancient statue.(A) which (B) where (C) how (D)
• 35. The sunlight is white and blinding, _______ hard-edged shadows on the ground.(A) throwing (B) be
• 13. 三位科学家因在烯烃复分解反应研究中的杰出贡献而荣获2005年度诺贝尔化学奖，烯烃复分解反应可示意如下：下列化合物中，经过烯烃复分解反应可以生成 的是二、选择题（本题共8小题。在每小题给出的四个
• 27. When I first met Beyan I didn't like him, but I _______ my mind.(A) have changed (B) change
• I went to a group activity, “Sensitivity Sunday”, which was to make us more 36 the problems faced by
• 21．一列简谐横波沿x轴传播，波长为1．2m，振幅为A。当坐标为x=0处质元的位移为 且向y轴负方向运动时．坐标为x=0．4m处质元的位移为 。当坐标为x=0．2m处的质元位于平衡位置且向y轴正方向运
• 28. The driver wanted to park his car near the roadside but was asked by the police _______.(A) not
• 29. The door _______ open, no matter how hard she pushed.(A) shouldn't (B) couldn't (C) wo
• ASome people will do just about anything to save money. And I am one of them. Take my family’s last
• 【題組】57. What can we learn about the author?(A) She rarely misses a good deal.(B) She seldom makes a
• 【題組】58. What does the author do?(A) She's a teacher.(B) She's a housewife.(C) She's a