By saying "Let's hope that this time it really will be the last one", the father meant that______.
参考答案
参考解析
【单选题】
he hoped there would be no more wars in the world
he wished the Second World War had not happened
he hoped people would build more bonfires
he wished people would learn many lessons from the war
【单选题】
临床试验中的双盲法是指
被观察者不知道分组情况和接受的治疗措施
观察者不知道分组情况和接受的治疗措施
被观察者与分析者均不知道分组情况和接受的治疗措施
观察者与被观察者均不知道分组情况和接受的治疗措施
观察者与分析者均不知道分组情况和接受的治疗措施