【判断题】D20NHA型干燥器,压缩机启动,干燥器在除湿;压缩机停止,干燥器在再生。
【单选题】下列选项中的抗体结构域能与抗原特异性结合的部位是
【单选题】The teacher told his students that the earth around the sun.
【单选题】The teacher told his students the sun in the east.
【单选题】下列选项中的抗体结构域能与抗原特异性结合的部位是
【单选题】在抗体分子中,能与抗原相结合的部位是( )。