单项选择题

What cause our lack of confidence in this purchase are the______ of the machine: large consumption of energy, need of frequent maintenance and high price.

A．merits
B．handicaps
C．bruises
D．drawbacks
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The company formulated a package of______ for assessment of employees' performance.
A．criteria
B．partitions
C．principles
D．thresholds
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The box match will be broadcast______ on television and radio to all over the world.
A．simultaneously
B．homogeneously
C．spontaneously
D．harmoniously
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