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【单选题】
一则关于许多苹果含有一种致癌防腐剂的报道,对消费者产生的影响极小。几乎没有消费者打算改变他们购买苹果的习惯。尽管如此,在报道一个月后的三月份,食品杂货店的苹果销售大大地下降了。 下列哪项,如果为真,能最好地解释上述明显的差异?( )
A.
在三月份里,许多食品杂货商为了显示他们对消费者健康的关心,移走了货架上的苹果
B.
由于大量的食物安全警告,到了三月份,消费者已对这类警告漠不关心
C.
除了报纸以外,电视上也出现了这个报道
D.
尽管这种防腐剂也用在别的水果上,但是,这则报道没有提到
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参考答案:
举一反三
【简答题】According to the author, what do most people believe to be virtue? And what is real virtue?
【单选题】零件在加热或冷却时,由于表面和内部产生温差说明材料的
A.
韧性差
B.
塑性差
C.
刚性差
D.
导热性差
【简答题】设 的方差为 2.5 ,利用切比雪夫不等式估计 .
【单选题】Ask most people to list what makes them like someone on first meeting and they'll tell you personality, intelligence, sense of humor. But they're probably deceiving themselves. The characteristic that...
A.
appearance that hinders his/her inclination
B.
intelligence that triggers his/her interest
C.
appearance that touches off his/her inclination
D.
sweet personality and sense of humor that arouses his/her interest
【单选题】设随机变量X的方差为2.5,利用切比雪夫不等式估计概率
A.
1/22.5
B.
1/3
C.
1/9
D.
1
【单选题】在TCP/IP协议安全中,下列哪一项属于应用层安全
A.
VPNs
B.
PPP
C.
Kerberos
D.
SSL
【判断题】Most people concern more on what they say is going to be listened to than paying more attention to what they are going to say.()
A.
正确
B.
错误
【简答题】Most people want to be successful, but never stop to think what it will really take to get there in their chosen field. If it means going back to college for 2 years of night school, could you do it ?...
【判断题】Most people concern more on what they say is going to be listened to than paying more attention to what they are going to say.
A.
正确
B.
错误
【单选题】珍珠球运动是( )族的传统体育项目。
A.
B.
C.
D.
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