生理情况下,衰老的中性粒细胞主要破坏场所为()
A.肝脏
B.肾脏
C.血液
D.消化道
E.单核-吞噬细胞系统
参考答案:E
自立人生应从 什么时候开始 [ ]
A.儿童
B.少年
C.青年
D.越早越好
My brother _______ football quite well, but he hasn’t played since last year.
A.will play
B.has played
C.played
D.plays