题目

71. The lady made Joe and her          (company) in Rome. 72. I          (panic) when I saw smoke coming out of the engine. 73. Our government understands this and          (use) PSAs to educate people for many years. 74. You can hardly imagine what difficulty he had          (apply) to his study. 75. The conclusion was drawn on the          (base) of experiments.某程序框图如图所示，若使输出的结果不大于20，则输入的整数的最大值为（   ）A．3 B．4 C．5 D．6