单项选择题
A. a difference
B. an interference
C. a modification
D. an impact
单项选择题 Tom could hardly()his excitement as he knew that he had made a real discovery.
单项选择题 I was not alone in my knowledge; the woman had also seen my father's eyes gleaming with pride()
单项选择题 The preserved food should retain palatable appearance, flavor, and texture, as well as its original nutritional value()