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【单选题】
在六味地黄丸的显微鉴别中,薄壁组织灰棕色至黑棕色,细胞多皱缩,内含棕色核状物。该显微特征属于A.
山药
B.
茯苓
C.
熟地黄
D.
牡丹皮
E.
泽泻
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举一反三
【单选题】When having dinner, the guests are expected to______.
A.
eat their food slowly
B.
help the host serve food
C.
serve each other at the table
D.
help themselves to more food
【简答题】名词解释: 燃气热值;理论空气需要量;过剩空气系数;理论烟气量。
【单选题】Ann suggests that Mary offer drinks______.
A.
while the guests are having small talks
B.
when all the guests have arrived
C.
after the guests finish small talks
D.
after the dinner comes to an end
【简答题】汽车一般由( )、底盘、( )及电气设备等四部分构成。
【简答题】过量空气系数(名词解释)
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