皮皮学，免费搜题
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【单选题】
茶树是生长在( ) 的常绿阔叶木本植物。 @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 { }A.
热带 @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.
温带 @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.
寒带 @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.
亚热带 @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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举一反三
【单选题】Diesel engine mufflers accomplish noise reduction by _____.
A.
reducing exhaust gas velocity
B.
increasing the frequency of gas vibration
C.
the use of long head pipes
D.
the use of zinc electrodes
【单选题】The author’s attitude toward reducing salt in food is__________． 查看材料
A.
agree
B.
negative
C.
eclectic
D.
inexplicit
【简答题】化学反应的本质特征是有______生成，同时，化学反应还伴随着______变化，通常表现微反应过程中的放热或吸热，这是由于反应物、生成物具有的能量不同．化学反应的过程，可以看成是“贮存”在物质内部的能量转化为热能等能量释放出来的过程，或者是热能等能量转化为物质内部的能量而被“贮存”起来的过程．一定条件下，如果参加反应的反应物所具有的能量高于生成物所具有的能量，该化学反应将向环境中释放能量． （1）...
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