【单选题】Which word means "unpredictable"?
【单选题】Which word means "repair"?
【单选题】which word means "A software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer "
【单选题】Which word means "situation"?
【单选题】Which word means "kind"?
【单选题】Which word means "help"?