GRE Reading Comprehension: Manhatton-GRE阅读Manhatton - 58TE82HFA5U58TV7A$

According to the passage, the limitation of combining many cells into one sample and then rupturing their membranes in order to detect a target molecule is that A. variability exists within cell populations B. some cells in the sample may contaminate others C. this method cannot single out the cells that express more of a certain molecule D. the rupture of cell membranes is implicated in the formation of cancer E. it is preferable to capture a population's average levels of a molecule