The expression “ups and downs” in line 23 is closest in meaning to A. tops and bottoms B. floors and ceilings C. takeoffs and landings D. highs and lowsĐoạn văn72/80The expression “ups and downs” in line 23 is closest in meaning totops and bottomsfloors and ceilingstakeoffs and landingshighs and lowsGiải thíchĐáp án: D