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【简答题】
依靠下降管与上升管工重差进行循环的锅炉称()锅炉;由锅水循环泵推动循环的锅炉称()锅炉。
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皮皮学刷刷变学霸
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【简答题】王逸 云:“离,别也;,愁也;经,径也;言己放逐离别,中心愁思,犹依道径,以风(讽)谏君也。”
【简答题】Write the Chinese meaning of "reaction" in general English.
【简答题】Do you ever find yourself getting really unhappy for almost no reason? Or suddenly feeling down without knowing why? Going from sadness to anger to joy in a matter of minutes can make many s feel ...
【单选题】Do you find getting up in the morning so difficult that it's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. Durin...
A.
he is a lazy person
B.
he refuses to follow his own energy cycle
C.
he is not sure when his energy is low
D.
he is at his peak in the afternoon or evening
【单选题】设计键连接的几项主要内容是：a.按轮毂长度选择键的长度 b.按使用要求选择键的适当类型c.按轴的直径选择键的剖面尺寸 d.对键进行必要的强度校核在具体设计时一般顺序为_________。
A.
b →a→c→d
B.
b→c→a→d
C.
a→c→b→d
D.
c→d→b→a
【多选题】以下对企业营销目标的描述中，属于定量的营销目标的是()。
A.
确保营销渠道多样化
B.
销售额增长率应达到15%
C.
产品获利率应达到10%以上
D.
保持市场领先地位
【简答题】字符串"sgabacbadfgbacst" 中存在( )个与字符串"ba"相同的子串。
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