发病率最高的原发性免疫缺陷病是()
A.抗体缺陷病
B.细胞免疫缺陷
C.抗体和细胞免疫联合缺陷
D.吞噬功能缺陷
E.补体缺陷
参考答案:A
Some people tried to separate our country by taking illegal action, which didn't exactly ____
racial harmony. [ ]
A. make it
B. make for
C. make out
D. make up
老人雾化吸入给药时应取()。
A.平卧位
B.坐位或半坐卧位
C.俯卧位
D.站立位