人类同种异型抗原是()
A.动物血清
B.HLA
C.细菌
D.病毒
E.花粉
参考答案:B
本方法也适用于同时含有()筛分试验,如未筛碎石、级配碎石、天然砂砾、级配砂砾、无机结合料稳定基层材料、沥青拌和楼的冷料混合料、热料仓材料、沥青混合料经溶剂抽提后的矿料等。
A、矿粉的集料混合料
B、粗集料
C、细集料
D、粉煤灰料
A merchant, whose daughter had married a man with whom it proved she could not get on very well, was surprised some weeks later to see the young lady return home with all her belongings.