流式细胞仪接收并分析的信号主要有光散射讯号和荧光讯号。()
参考答案：对
患者，女性，22岁。近3个月来月经增多，因皮肤及牙龈间断出血来诊。体检：齿龈及皮肤瘀斑，肝脾未触及，胸骨无压痛。Hb105g/L。骨髓示：巨核细胞明显增多，成熟型减少。最可能的诊断是（）。
A.慢性再障
B.急性再障
C.急性淋巴细胞白血病
D.特发性血小板减少性紫癜
E.DIC
. ------- What do you think of Harry, our new roommate?
-------- I am not sure, but he is always asking ______ questions.
a great many of B. a great many C. a great number D. a large amount of
