单选题 About one million Americans are diagnosed {{U}}annually{{/U}} with skin cancer.
  • A. every year
  • B. severely
  • C. actively
  • D. every month
【正确答案】 A
【答案解析】[解析] annually“每年地”，四个选项：every year“每年”；severely“严格地”；actively“活跃地”；every month“每月”；根据题意，A项符合题意。