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【单选题】
X62W万能铣床电气控制线路图中,主轴电动机采用的制动方法是( ) 。A.
电磁离合器制动
B.
电磁抱闸制动器制动
C.
反接制动
D.
能耗制动
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【单选题】在FeCl 2 和AlCl 3 的混合溶液中加入过量的氨水，直至溶液中沉淀的量不再改变为止。经过滤、洗涤、干燥、在空气中灼烧，最终剩余固体的成分是 （ ）
A.
Fe 2 O 3 、Al 2 O 3
B.
Fe 2 O 3
C.
Fe (OH) 2 、Al(OH) 3
D.
Fe(OH) 3 、Al(OH) 3
【简答题】My grandfather had always taken a _______interest in my work, and I had an equal admiration for the stories of his time. A)splendid B)weighty C)vague D)keen
【单选题】下列哪些属于按茶树品种命名() @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}@font-face { font-family: "微软雅黑";}p.MsoNormal { margin: 0pt 0pt 0....
A.
蒙顶黄芽 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}@font-face { font-family: "微软雅黑";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
B.
铁观音 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}@font-face { font-family: "微软雅黑";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
C.
金骏眉 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}@font-face { font-family: "微软雅黑";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
D.
君山银针 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}@font-face { font-family: "微软雅黑";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
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