Jim ______ to act on his own judgment, but he didn't because as a soldier he had to obey the order. ( )
A.would prefer
B.would have preferred
C.preferred
D.might prefer
A.would prefer
B.would have preferred
C.preferred
D.might prefer
B.his vacation
C.flying to Hawaii
D.he visited Canada
A.deny
B.reject
C.withdraw
D.avoid
4. Finding Early Signs of Mad-Cow Disease(5分)
Disease damage: This microscopy image shows brain tissue damaged by Creutzfeldt-Jakob (可不译,照搬) disease. Researchers have made a list of blood proteins that act as early indicators of a group of diseases including bovine spongiform. encephalopathy (BSE), also known as mad-cow disease. The human form. of BSE, a fatal degenerative neurological disorder, called Creutzfeldt-Jakob disease
Biotech pioneer: Leroy Hood, president and cofounder of the Institute for Systems Biology, in Seattle, invented several tools, including the automated DNA sequencer that helped make it possible to sequence the human genome. Now, biotech pioneer Leroy Hood explains how Systems Biology will impact medicine.