ICSH建议,血细胞计数时首选抗凝剂是()
A.EDTA-K2
B.EDIA
C.EDTA-Na2
D.肝素
E.枸橼酸钠
参考答案:A
— ______________________?
— They are in the woods.[ ]
A. Where are they
B. What are they doing
C. When are they
Y162A型束纤维强力机仪器结构由()组成。
A.称量部分
B.制动部分
C.传动部分
D.测力部分