单项选择题 Which of the following is better to translate “两个民族的两个伟大领袖的会晤终于来到了。” A. Finally came the meeting of two great leaders of the two great nations. B. The meeting of two great leaders of the two great nations finally came. C. The meeting of two great nations of the two great leaders finally came. D. Finally came the meeting of two great nations of the two great leaders.

单项选择题 衣服有L，M，S等尺码，这些尺码可以表示为（） A、分类数据 B、数值数据 C、连续数据 D、整数

判断题 对于异源生物来说，抗体可能会成为抗原