适用于全血细胞分析的抗凝剂为（）
A.肝素
B.枸橼酸钠
C.EDTA-K2
D.草酸铵
E.双草酸盐
参考答案：C
________ denken Sie gerade -An meine Arbeit.
A．Was an
B．Woran
C．An wen
D． An
How many hours of rest is the minimum required in a normal day?（）
A.14 hours
B.10 hours
C.6 hours
D.It does not matter as long as my overtime is paid for
