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【单选题】
地面水的常规处理是:
A.
沉淀——过滤——消毒
B.
过滤——沉淀——消毒
C.
过滤——消毒——沉淀
D.
沉淀——消毒——过滤
E.
消毒——沉淀——过滤
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【简答题】Which of the following will not cause a change in the owners' equity of a business?
【简答题】A.The owners were reluctant to change things. B.The magazine didn't make any profit. C.The owners wanted her to leave. D.The magazine was unpopular.
【简答题】某兴趣小组在实验室用加热乙醇、浓H 2 SO 4 、溴化钠和少量水的混合物来制备溴乙烷,检验反应的部分副产物,并探究溴乙烷的性质。 (一)溴乙烷的制备及产物的检验:设计了如上图装置,其中夹持仪器、加热仪器及冷却水管没有画出。请根据实验步骤,回答下列问题: (1)竖直冷凝管冷凝水流向 口进 口出,竖直冷凝管冷凝的作用 (2)制备操作中,加入的少量的水,其目的是 ;(填字母) a.减少副产物烯和醚的生...
【单选题】Which of the following will cause a change in the owners' equity of a business?
A.
Purchase of equipment with cash
B.
Pay off the liability with cash
C.
Investment of cash in the business by the owner.
D.
Sale of equipment for cash at cost
【单选题】Which of the following will not cause a change in the owners' equity of a business?
A.
Purchase of land with cash.
B.
Withdrawal of cash by the owner.
C.
Sale of land at a profit.
D.
Losses from unprofitable operations.
【简答题】某兴趣小组在实验室用加热乙醇、浓H 2 SO 4 、溴化钠和少量水的混合物来制备溴乙烷,检验反应的部分副产物,并探究溴乙烷的性质. (一)溴乙烷的制备及产物的检验:设计了如图1装置,其中夹持仪器、加热仪器及冷却水管没有画出.请根据实验步骤,回答下列问题: (1)仪器A的名称是______. (2)制备操作中,加入的少量的水,其目的是______.(填字母) a.减少副产物烯和醚的生成 b.减少Br...
【判断题】宪法在社会生活中扮演着不可或缺的角色,被冠以“根本法”、“母法”、“限法”等诸多称谓。
A.
正确
B.
错误
【单选题】The change in owners' equity due to only revenue and expense transactions is explained by the:
A.
Statement of cash flows.
B.
Statement of financial position.
C.
Income statement
D.
Tax return.
【判断题】The transfer of surplus reserves to additional capital will not cause the total owners' equity to change.
A.
正确
B.
错误
【多选题】次生分生组织包括( )
A.
根的形成层
B.
束中形成层
C.
茎的束间形成层
D.
原形成层
E.
木栓形成层
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