3.在凋亡早期，位于细胞膜外侧的磷脂酰丝氨酸翻转至内侧，可以用针对磷脂酰丝氨酸的荧光标记探针进行检测。
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4.随着培养细胞传代次数的增加，细胞群体中表达衰老相关的β-半乳糖苷酶的细胞日益减少。
A. 对
B. 错
[音频]Decide whether the following statements are true(T) or false (F).The company is based in the north of England.
A. 对
B. 错
The founder of the company was Nigel's uncle.
A. 对
B. 错
It was founded in 1960.
A. 对
B. 错
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