[简答题]part 2Describe one particular regulation employed during Olympic Games
What performances have you watched and with whom
What game have you played in your childhood
第4题: [多项选择]热力管网环状布置的优点为( )。 A. 运行方便 B. 造价低 C. 具有供热的后备性能 D. 比较简单 参考答案:C 答案解析:热力管道的平面布置主要有枝状和环状两类。
枝状管网比较简单,造价低,运行管理方便,其管径随着距热源距离的增加而减小。缺点是没有供热的后备性能,即当网络某处发生故障时,将影响部分用户的供热。
环
第27题:[单选题]心绞痛疼痛发作时典型心电图表现是 A. ST段弓背抬高 B. ST段压低,T波低平或倒置 C. T波高尖 D. P-R间期延长 E. 出现宽大畸形的病理性Q波 参考答案:E
第28题: [单项选择]The reason why he was late is ______ he got up too late. A. that B. because C. as D. for 参考答案:A 答案解析:[解析] “the reason...is that...”是表语从句常用的形式,不要误用成"the reason...is because...”因为is后的句子表示reason的内容,并不表示原因