题目

An unemployed man is desperate to support his family. His wife watches TV all day and his three teenage kids have dropped out of high school to hang around with the local toughs. He applies for a cleaner’s job at a large firm and easily passes an aptitude test. The human resources manager tells him, “You will be hired at minimum wage, $5.15 an hour. Let me have your e-mail address so that we can contact you easily. Our system will automatically e-mail you all the forms and advise you when to start and where to report on your first day.” Greatly surprised, the man protests that he has nei 为预防和控制甲流感，某学校医务室欲将22支相同的温度计分发到高二年级10个班级中，要求分发到每个班级的温度计不少于2支，则不同的分发方方式共有（  ）     A．45种         B．55种         C．90种         D．100种