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【单选题】
重金属检查中,加入硫代乙酰胺时溶液最佳的pH是( )A.
1.5
B.
3.5
C.
7.3
D.
9.5
E.
11.5
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【简答题】s ell tickets
【单选题】Which of the following about c ell c ycle is NOT true? ( )
A.
Cytokinesis of animal cells is mediated by a contractile ring of actin and myosin II filaments.
B.
According to the characteristics of cell division, c ell groups c an be divided into three types , such as Cycling cells , Terminally Differentiated cells and Quiescent cell.
C.
Meiosis II is similar to m eiosis I.
D.
We can get the synchronization of the cells by b locking DNA synthesis by TdR .
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【简答题】_ell