第18题: [单项选择]What may happen to computer criminals once they are caught A. With a bad reputation they can hardly find other jobs. B. They may walk away and easily find another jobs. C. They will be denied access to confidential records. D. They must leave the country or go to jail. 参考答案:B 答案解析:这句话意为:他们离开公司并很容易地找到另一份工作。另外,第二段也提到,如果没有人(定期)检查计算机 (check up on),计算机犯罪很可能就查不出来,但是,即使是查出来了,犯罪者也可能逃避惩罚,
第27题:[单选题]铁路货车零部件磁粉探伤时,每班开工前应检查磁悬液的浓度。取样前应对磁悬液进行充分搅拌,用长颈沉淀管接取从喷嘴喷出的磁悬液( ),静置沉淀( ),然后观察并读取长颈沉淀管中沉积磁粉的体积,该体积读数即为磁悬液浓度的数值(单位为mL/100mL)。 A.100mL,30min B.100mL,40 min C.100mL,30min~35 min D.120mL,40min~50min 参考答案:C