The word “combat”(Paragraph 4) is closet in meaning to “_________ ”
A． come back
B． combine
C． fight against
D． avoid
正确答案：C
词汇语义题根据艾中“Rightnowwedon’thaveasolutiononhowtocombatitsowe’retryingtodosomedifferentthingsthanwhathashappenedbefore”可知combat在这里是指“抵抗战胜疾病”之意所以正确答案是C；选项A(回来)选项B(联合混合)选项D(避免)都不合题意
