第18题: [单项选择]A company has 100GB of data that needs to be automatically backed up daily, and needs to be stored for 20 years. Which of the following backup media is the BEST solution for archiving the server data?() A. Tape B. SAN C. Flash D. Optical 参考答案:A
第22题: [单项选择]It is estimated that the disease ______ by polluted water will kill 1 out of every 100 children. A. causing B. caused C. to cause D. will cause 参考答案:B 答案解析:本题考查动词形式。根据句意,应该是由污染水引起的疾病,因此应该用过去分词 caused,表被动。句意为:据估计,每100个孩子中就有1个死于由水污染引发的疾病。