51.   Biologists who have made these animals live longer by genetic manipulation have found that their cells are less likely to die after oxygen-related damage.

52.   The cell is able to split the ladder and then rebuild the other halves so that it now has two copies of the original.

53.   A disadvantage is that such cells are hard to isolate and cannot be grown as easily in test tubes as embryonic cells.

54.   A second development was the discovery that adult brains continue to produce new cells, overturning conventional wisdom that brain cells are not replenished.

55.   A PV cell is the perfect power supply.

56.   After the rewired ferrets matured, researchers looked at the auditory region of their brains and found that cells were organized pinwheel fashion.

57.   After it has been fused, the cell is able to grow and divide and become any kind of cell.

58.   After treatment with GA, T cells are more likely to cross-react with many different peptides.

59.   After those cells were grown to make a cup-shaped piece of tissue, they used it to repair the bladder of the newborn lamb.

60.   Ali said the open cells are a cultural and religious problem if the Muslim detainees must urinate in public.

n. + be >>共 1635
problem 0.82%
people 0.79%
company 0.71%
result 0.67%
thing 0.63%
report 0.57%
question 0.56%
official 0.55%
time 0.53%
issue 0.48%
cell 0.02%
cell + v. >>共 409
be 16.86%
have 5.47%
divide 3.10%
produce 2.91%
grow 2.37%
die 2.37%
become 2.23%
begin 1.65%
contain 1.55%
make 1.45%
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