What does the example of Vasco da Gama show?
A、
Scurvywasthecommonestdiseasetheexplorerswerecaughtwith.
B、
Therewereonly54returningcrewmembersbecauseofscurvy.
C、
Theexplorerscaughtwithscurvyhadalotofsymptoms.
D、
Theexplorerscaughtwithscurvydidnothavethehealthylong-preservedfood.
发布时间：2025-08-21 03:05:16
