癔症常见感觉障碍是（） ["耳聋","失明","失音","咽部异物感","以上都对"]
隐性采访的社会价值。
（）是CRM实施成功的关键。
Given： String[] elements = { "for"， "tea"， "too" }； String first = （elements.length > 0） ？ elements[0] ： null； What is the result？（） ["Compilation fails.","An exception is thrown at runtime.","The variable first is set to null.","The variable first is set to elements[0]."]
斜纹夜蛾产卵于（）。 ["茎叶表面","叶片背面","植物根部","土壤中"]
消费者的权利、经营者的义务包括哪些？
