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【单选题】
蜗轮副正确的接触斑点位置应在 位置。A.
蜗杆中间
B.
蜗轮中间
C.
蜗轮中部稍偏蜗出方向
D.
蜗轮中部稍偏蜗轮旋出方向
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举一反三
【单选题】What do the majority of small firms spend on training?
A.
Less than 1% of their payroll.
B.
1-5 % of their annual payroll.
C.
5-10% of their annual payroll.
D.
More than 1096 of their payroll.
【单选题】In his research, what did Tom Henderson find about training in small firms?
A.
They spend too little on training.
B.
They are unaware of their training expenses.
C.
They receive state subsidies for training.
【单选题】What do the majority of small firms spend on training?
A.
Less than 1% of their payroll.
B.
1%--5% of their annual payroll.
C.
More than 10% of their payroll.
【单选题】下列有关化妆的说法正确的是（ ）
A.
服务员不适宜使用浓香型的化妆品
B.
服务员在工作时可化宴会妆
C.
化妆时要将眼部和嘴部作突出处理
D.
服务员工作时要将主要精力化在化妆上
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