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问题 单项选择题

以下各项中，属于品牌经营策略的优点的是( )。

A．著名名称新产品易迅速被市场接受
B．节约新产品市场推广和广告宣传费用
C．有利于严格区分不同档次产品，显示企业雄厚实力
D．使企业能够发展壮大

答案

参考答案：D

解析： 品牌经营策略的优点是使企业能够发展壮大，因此D项为正确答案。

单项选择题

大剂量用药后易发生高铁血红蛋白血症的药物是

A．硝酸甘油
B．硝苯地平
C．普萘洛尔
D．维拉帕米
E．吲哚洛尔
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单项选择题

When Columbus reached the New World, com was the most widely grown plant in the Americas. This plant’s range extended from what is now southern Canada to lower South America. At that time some tribes cultivated it at sea level, others at elevation(海拔高度) of more than 11 000 feet.
"Columbus had no way of knowing that corn was far more valuable than the spices(香料) and gold he had hoped to find." said Frances B. King, a professor at a university of Pittsburgh. Through human intervention, this plant has developed into several hundred races, or varieties. Their heights vary from 2 to 12 feet, and their maturity ranges from little more than 2 months to almost a year. Their ears vary not only in color, but also in size.
Unlike other cereals(谷类), corn bears little resemblance to its wild ancestors. In fact, it differs from the appearance of its immediate ancestors more than any other cultivated plant known. From humble origins as a lowland grass, corn developed into the western world’s important grain. As its high yields allowed communities to grow far beyond what early agriculture could feed, most scientists viewed corn as having largely fueled pre-Columbian growth and civilization.
Now, new findings are greatly altering researchers’ notions about the time when com revolution occurred. New dates for its emergence from Mesoamenrica do not support the widely held view. The evidence now suggests that the signs of corn in Americas can date back 5 500 years at least.

The second paragraph implies that ______.

A．the purpose of Columbus’ exploration was to discover com

B．corn was one of Columbus’ discoveries, but more precious than anything else

C．Columbus knew corn so well that he brought back to Europe at once

D．corn was the only Columbus’ discovery that was remembered
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