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【单选题】
一个直角三角形，以它的一条直角边为轴旋转一，所形成的图形是（ ）．A.
长方体
B.
圆柱
C.
圆锥
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【简答题】When opening small businesses ,the most important thing for small-business owners to do is [A] to make a thorough ysis on the market. [B] to invest much more money in small business. [C] to cut do...
【简答题】小班应能正确掌握的形状有( )、( )、( )、( )。
【简答题】A．When you have small children. B．When you live in an apartment. C．When space is limited. D．When you live in the city.
【简答题】A．When you have small children. B．When you live in an apartment. C．When space is limited. D．When you live in the city.
【单选题】When opening small businesses, the most important thing for small-business owners to do is
A.
to make a thorough analysis on the market,
B.
to invest much more money in small business.
C.
to cut down the workers' wages,
D.
to think carefully about the internal specific conditions in the small enterprises,
【简答题】手工创建元件封装是指利用 工具,按照 的尺寸绘制出该元件封装。
【多选题】下列关于鸢尾的描述正确的是( )。
A.
别名蓝蝴蝶，扁竹花，原产云南、四川、江苏、浙江等地。
B.
叶剑形，排列如扇形，淡绿色，薄纸质。
C.
花垂瓣具蓝紫色条纹，瓣基具褐色纹，中央有鸡冠状突起，白色带紫纹，旗瓣较小，弓形直立，基部收缢，色较浅。
D.
性强健，耐寒耐旱，喜光，耐半阴，耐湿，喜酸性土壤。
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