曾经撰写著作《反思性实践者》，并提出“行动中反思”与“对行动的反思”的学者是（）。
A. 杜威
B. 萧恩
C. 黑格尔
D. 皮亚杰
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SBS改性沥青防水卷材采用热熔法施工时，满粘法搭接长度不得小于80mm，条粘法不得小于100mm。
A. 正确
B. 错误
Which of the following statements is NOT true?（）
A. In the 13th century a Black Rod went between the two Houses of Parliament for liaison and to discipline the members.
B. In the 13th century Parliament only met by royal invitation.
C. In the 13th century Parliament's role was to offer advice,not to make decisions.
D. In the 13th century the most important part of Parliament was the House of Lords.
旅游经营者不配备旅游安全设备和安全设备，根据《河北省旅游条例》规定，应受哪些处罚？
现金收付要依据内容完整、要素齐全的有效凭证办理，收付现金要当面点清，做到一笔一清。
A. 正确
B. 错误
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