下列工作中，( )应列入主动控制措施。
A．平行检验 B．核验施工测量成果C．撤换不合格的管理人员 D．分析确定风险对策
参考答案：D
According to their predictions, more than 20,000 tourists are expected by the hotel this year.
A．to be received
B．to receive
C．receiving
D．received
肾盂大量积水
A．腰部膨隆B．右下腹膨隆C．上腹中部膨隆D．左下腹膨隆
