[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
正确答案:B

[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
正确答案:B