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【判断题】
在时间坐标上环境演变的基本表现形式中，平稳序列指一段时间内的平均值保持在同一水平上。()A.
正确
B.
错误
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【简答题】阅读理解。 Born in 1949, Diana Nyad took an early interest in swimming as a sport and was a Florida State High School swimming champion. Like many young athletes, she had Olympic dreams, but a serious illn...
【简答题】请整理好本节课笔记包括:古埃及的历史时期分为哪几个,古埃及的文化特点是什么?古埃及建筑的种类有哪些?等内容,拍照上传。
【多选题】工程网络计划中，当计划工期等于计算工期时，关键线路是指（ ）的线路。
A.
时标网络计划中没有波形线
B.
双代号网络计划中没有虚箭线
C.
单代号网络计划中各关键工作之间的时间间隔均为零
D.
单代号网络计划中各工作自由时差为零
E.
双代号网络计划中线路长度最长
【单选题】The People's Republic of China was founded in 1949.
A.
supported
B.
established
C.
discovered
D.
emerged
【单选题】5 His novel was adapted for the stage in 1949 as a musical play entitled as St. Louis woman.
A.
closer for
B.
included
C.
starred
D.
named
【单选题】His novel was adapted for the stage in 1949 as a musical play entitled as St. Louis woman.
A.
closer for
B.
included
C.
starred
D.
named
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