假如用化学药物强烈地抑制肿瘤细胞的DNA复制，这些细胞就停留在

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问题选择题

假如用化学药物强烈地抑制肿瘤细胞的DNA复制，这些细胞就停留在细胞周期的[ ]

A．分裂间期

B．前期

C．中期

D．后期

答案

答案：A

判断题

()在使用定量订货法前,应先确定订购点和订购批量,随时检查库存,当库存下降到订货点时就发出订货。

A．正确

B．错误

补全对话，情景问答

1. — Look at Li Ming and Jenny. — Li Ming is ____________ than Jenny.
2. — How does Tom go to work? — He ____________ to work.
3. — Is your sister a ____________? — Yes, she is.
4. — How old is Lynn? — She is ____________ years old.
5. — Does your grandmother wear ____________? — Yes, she does.