【单选题】苏州留园的( ),江南四大名石之一,相传为明代之物,以其体量特大,姿态不凡且遍布涡洞而著称。
【多选题】下列关于朗格汉斯细胞组织细胞增生症的描述,正确的有
D.
免疫球蛋白重链和T细胞受体基因β、γ、δ链均为胚系构型
【单选题】Some other cases ,though less dramatic,are equally _____ attention .
【单选题】Dramatic changes in higher education are giving more people_________ ever the chance of studying for a degree.