题目

After spending a weekend away with my adult son, I was so impressed by his generous heart that I sent him this letter. 36. A. humorous B. private  C. reasonable   D. valuable 37. A. followed B. gave C. set  D. took 38. A. ordered  B. booked   C. offered  D. bought 39. A. hesitation   B. doubt    C. permission   D. difficulty 40. A. other    B. last C. extra    D. rest 41. A. again    B. already  C. only D. also 42. A. nothing  B. everything   C. anything D. something 43. A. finding  B. accepting    C. looking for  D. pointing at 44.  A. behind  B. beyond  如图所示的电路中，电源电动势为E，内电阻为r，开关S闭合前，电压表的读数U1，当开关S闭合后，电压表的读数为U2，则（　　）A．U1＜U2B．U1=U2C．U1＞U2D．无法确定