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问题 单项选择题

( )是指生产企业针对销售其产品的商业企业或中间商在产品分销过程中所处的环节不同，所承担的功能、责任和风险不同给予不同的价格折扣。

A．功能折扣

B．数量折扣

C．季节折扣

D．促销让价

答案

参考答案：A

解析： B项，数量折扣是企业为鼓励顾客集中购买或大量购买所采取的一种定价策略；C项，季节折扣是指销售企业在商品的采购淡季，为刺激和鼓励采购企业或消费者的购买(或储备)而给予的价格折扣；D项，促销让价是指生产企业对各类中间商为本企业产品推广所进行的各种促销活动，通常按一定的比例对客户的发票价格(即经过其他折扣后的净价格)进行折扣，作为补偿。

单项选择题

In the second half of each year, many powerful storms are born in the tropical Atlantic and Caribbean seas. Of (91) , only about half a dozen (92) the p, circling winds of 75 miles per hour or more that give them hurricane status, and several usually (93) their way to the coast. There cause millions of dollars of (94) , and bring death to (95) numbers of people.
The great storms that hit the coast start (96) innocent circling disturbances hundreds, even thousands of miles out to sea. As they travel aimlessly over water (97) by the summer sun, they are carried westward by the (98) winds. When conditions are just (99) , warm, moist air flows in (100) the bottom of such a disturbance, moves upward through it and comes out at the top. In the (101) , the moisture in this warm air produces rain, and with it the heat is converted to energy in the form of p winds. As the heat increases, the (102) hurricane begins to swirl in a counter-clockwise motion.
The average life of a hurricane is only about nine days, but it contains almost (103) power than we can imagine. The energy in the heat released by a hurricane’s rainfall in a(n) (104) day would (105) the entire electrical needs of the United States for more than six months. Water, not wind, is the main (106) of death and destruction in a hurricane. A(n) (107) hurricane brings 6-to 12-inch downpours (108) in sudden floods. (109) is the powerful movement of the sea-the mountains of water moving toward the low-pressure hurricane center. The water level (110) as much as 15 feet above normal as it moves toward shore.

A．rises

B．raises

C．lifts

D．increases
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单项选择题

除碳器安装在（）之后。

A、阳床；

B、阴床；

C、机械过滤器；

D、混床。
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