鉴别再生障碍性贫血与急性白血病最主要的依据是()。
A.血小板计数
B.外周血出现幼红细胞
C.网织红细胞计数
D.外周血出现幼粒细胞
E.骨髓检查
参考答案:E
用列举法表示集合.
(1)平方等于16的实数全体;
(2)比2大3的实数全体;
(3)方程x2=4的解集;
(4)大于0小于5的整数的全体.
Even when I am able to get in touch with the manager and tell him your request, I cannot_____he will
reply. [ ]
A. stress
B. appeal
C. inform
D. guarantee