单项选择题
No longer are contributions to computer technology confined to any one country; ______ is this more true than in Europe.
单项选择题 This disease ______ itself in yellowness of the skin and eyes.
单项选择题 In this experiment, they are wakened several times during the night, and asked to report what they ______.
单项选择题 The scientists have absolute freedom as to what research they think it best to ______.
