题目内容

下面的哪些因素会影响颜色的匹配()。

A. 稀释比例
B. 稀释剂种类
C. 喷漆压力
D. 油漆的搅拌

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ItisdesirablethAttheairplane()aslightaspossiBle.

A. is
B. were
C. Be
D. hadbeen

纵向衣通要求柜体的安装净空深度大于多少。()

A. 250mm
B. 300mm
C. 310mm
D. 350mm

Wecamefinally()theconclusionthatshehadbeentellingliesallthetime.

A. of
B. into
C. to
D. At

直径为D的圆管,在半满流(即水深为D/2)条件下,其水力半径R为()

A. R=D
B. R=D/2
C. R=D/4
D. R=D/8

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