A.list some famous Nobel prize winners. |
B.introduce a few Nobel prize winners who did experiments on themselves. |
C.describe some dangerous experiments that Nobel prize-winners did on themselves. |
D.list some difficulties that scientists go through to make important discoveries in biology . |
A.Forssmann’s experiment ended in failure. |
B.Forssmann had the pipe pushed all the way into his heart. |
C.Barry Marshall succeeded by drinking some Helicobacter pylori. |
D.Barry Marshall was given full responsibility for the study on gastritis at first. |
A.a kind of stomach disease |
B.a kind of immune cell |
C.a new type of therapy |
D.a type of leg cancer |
A.had his request to experiment on patients denied |
B.believed that cancer comes from stress and spicy food |
C.discovered a new type of cancer cell called the dendritic cell |
D.tried different therapies containing the dendritic cell on himself |