司马迁的《史记》是我国的第一部（）。“人固有一死，或重于泰山，或轻于鸿毛。”是司马迁的名言。
参考答案：纪传体通史
In his whole life, the main aim was to his brother in business. But he failed in the end. [ ]
A. defeat
B. win
C. hit
D. strike
如图为人的体液免疫图解，下列有关的说法中正确的是（）
A.细胞①～⑤均能识别抗原
B.细胞⑤为靶细胞
C.细胞③为B细胞
D.细胞②不能释放淋巴因子
