When his uncle to school every day? [ ]
A. do; go
B. does; go
C. is; goes
D. is; going
答案:B
1岁男孩,生后不久反复皮肤感染、牙周炎。生后脐带于25d才脱落。身材矮小和智力发育迟缓,最可能是
A.白细胞黏附分子缺陷Ⅰ型
B.白细胞黏附分子缺陷Ⅱ型
C.慢性肉芽肿病
D.慢性良性中性粒细胞减少症
E.周期性中性粒细胞减少症
()年,第二次世界大战爆发,反法西斯同盟,最终战胜了法西斯同盟,取得了战争的胜利
A.1921
B.1927
C.1939
D.1945