City running tours are a great way to _______________________ (与其他跑步者一起打发闲暇时光) and see lots of tourist attractions when getting a workout.
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To work remotely while traveling, you can download an app to _____________________________________ (了解时区变化情况), so you don’t end up calling your colleagues at 3 a.m.
初等函数在其定义域内一定连续( )
A. 对
B. 错
转桨式水轮机的能量试验成果整理要针对一系列固定的桨叶安放角分别进行
A. 对
B. 错
整理水轮机模型能量试验成果时,需要针对每一个代表性导叶开度分别进行
A. 对
B. 错
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