问题
单项选择题
Owing to the slack demand ______ their products for the time being, they do not think it advisable to buy the machine.
A．of
B．for
C．on
D．in
答案
参考答案：B
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Owing to the slack demand ______ their products for the time being, they do not think it advisable to buy the machine.
A．of
B．for
C．on
D．in
参考答案：B