【简答题】Lipitor is a prescription medicine. Along with diet and exercise, it lowers "bad", cholesterol in your blood. It can also raise "good'' cholesterol? Lipitor can lower the risk of heart attack in patie...
【单选题】A 27-year-old woman has recently been diagnosed with a glioma. Further family history reveals tht her 4-year-old son has been diagnosed with leukemia and has been undergoing chemotherapy. In addition,...
A.
activates the GTPase activity of the gene product of the Ras oncogene