问题
选择题
下列关于免疫的描述，正确的是[ ]
A．吞噬细胞吞噬外来细菌，必须有抗体参与
B．B细胞和T细胞所含基因不同，功能也不同
C．“先天性胸腺发育不全”的患者，细胞免疫有缺陷
D．B细胞与骨髓瘤细胞融合形成的杂交瘤细胞都能合成单克隆抗体
答案
答案：C
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下列关于免疫的描述，正确的是[ ]
A．吞噬细胞吞噬外来细菌，必须有抗体参与
B．B细胞和T细胞所含基因不同，功能也不同
C．“先天性胸腺发育不全”的患者，细胞免疫有缺陷
D．B细胞与骨髓瘤细胞融合形成的杂交瘤细胞都能合成单克隆抗体
答案：C
| 根据短文内容，从A、B、C、D四个选项中选出一个能正确填入相应空格内的最佳答案。 Mountain climbing is very popular in many parts of the world. Oko Suki lives 1 Japan and every year he and his two friends climb Fujiyama, not too far 2 Tokyo. Fujiyama is 3 mountain in Japan. It's more than 12,000 4 above the sea level (海平面). It's very 5 to climb mountains. It might be very 6 and windy. 7 might be snow slide (雪崩) and icy cliffs (冰崖) to climb. Oko and his friends are always 8 . They always 9 warm clothes. Some day Oko would like 10 Mount Everest. You know it's much higher than Fujiyama. | ||||
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