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【单选题】
．已知奇函数f（x）满足f（－1）＝f（3）＝0，在区间[－2，0）上是减函数，在区间[2，＋∞）是增函数，函数F（x）＝ ，则｛x｜F（x）>0｝＝A.
{x｜x＜－3，或0 3}
B.
{x｜x3}
C.
{x｜－3
D.
{x｜x＜－3，或0
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【单选题】金融衍生工具伴随的风险主要包括( )。 I.汇率风险、利率风险 II.信用风险、法律风险 III.市场风险、操作风险 IV.流动性风险、结算风险
A.
Ⅰ、Ⅱ、Ⅲ、Ⅳ
B.
Ⅰ、Ⅱ
C.
Ⅰ、Ⅱ、Ⅲ
D.
Ⅱ、Ⅲ、Ⅳ
【单选题】Some companies foresee the promising future of setting up food processing factories, although they do not see the need now.
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】广义的电子支付包括 、 和移动支付(手机支付)等
【简答题】FDA proposed the most sweeping food safety rules in decades, requiring farmers and food companies to be more cautious in the wake of deadly outbreaks in peanuts, cantaloupe (瓜），and leafy greens. The l...
【单选题】With their reputation _______ , food companies need to_______ their image.
A.
ruining; promote
B.
to ruin; improve
C.
ruined; polish up
D.
to be ruined; change
【单选题】Convenience food helps companies by creating growth but what is its effect on people? For people who think cooking was the foundation of civilisation, the microwave is the last enemy. The communion(共享...
A.
The relationship between meals and convenience food.
B.
The importance of convenience food in people's life.
C.
The rise of convenience food.
D.
The history of food industry.
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