需要立即清除道路、河道、航道或者公共场所的遗洒物、障碍物或者污染物,当事人不能清除的,行政机关可以决定立即实施();当事人不在场的,行政机关应当在事后立即通知当事人,并依法作出处理。
A. 强制措施
B. 行政处罚
C. 强制执行
D. 代履行
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天然存在的强心苷是C17侧链为不饱和内酯环的甾体化合物。
A. 正确
B. 错误
已知一架轧机轧辊槽深35mm,最大咬入角20°,最大压下最27.6mm,求轧辊的辊径应为多少?(cos20°=0.94)
Which statements are true regarding the system-defined moving window baseline in Oracle Database 11g?()
A. It does not allow you to change the moving window size.
B. Adaptive threshold functionalities use it by default to compute statistics.
C. It is created by default with the window size being equal to the AWR retention time.
D. It is created when the first snapshot is collected by the Automatic Workload Repository (AWR).