Which of the following signs and symptoms would alert the nurse to possible internal bleeding in a client who has undergone pulmonary lobectomy

A. Increased blood pressure and decreased pulse and respiratory rates.
B. Sanguineous drainage from the chest tube at a rate of 50 mL per hour during the past 3 hours.
C. Restlessness and shortness of breath.
D. Urine output of 180 mL during the past 3 hours.

某企业的内部评价基准日是12月31日，评价团队在对1月1日到12月31日间业务进行测试后，未发现有重大缺陷，就可以判定其内部控制有效。