机体缺乏IgA易患()
A.反复呼吸道感染
B.化脓性感染
C.革兰阴性细菌败血症
D.巨球蛋白血症
E.重链病
参考答案:A
The UK ________ Great Britain and Northern Ireland, is a country famous _____ its history.
A.consisted of, for
B.consisting of, as
C.consisting of, for
D.consisted of, as
发动机速度特性曲线与曲轴转速有关。