单项选择题

He is very ______ in using money.

A．economic
B．economical
C．economy
D．economize
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单项选择题
Dr. Jones ordered ______ for the laboratory.
A．two pieces of equipments
B．two equipments
C．two pieces of equipment
D．two piece equipments
单项选择题
His unhappy childhood ______ his bad temper.
A．counts for
B．accounts for
C．makes for
D．goes for
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