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问题 单项选择题

连续排污量的大小用锅炉排污率来表示，锅炉排污率是指：（）

A、锅炉排污量与锅炉有用蒸汽量的比值百分数

B、锅炉排污量与锅炉额定蒸发量的比值百分数

C、锅炉排污量与锅炉给水量的比值百分数

D、锅炉排污量与扩容器分离出来的二次蒸汽量的比值百分数

答案

参考答案：C

单项选择题

It is April 15, and a trader is entered into a short position in two soybean meal futures contracts. The contracts expire on August 15, and call for the delivery of 100 tons of soybean meal each. Further, because this is a futures position, it requires the posting of a $ 3000 initial margin and a $1500 maintenance margin per contract. For simplicity, however, assume that the account is marked to market on a monthly basis. Assume the following represent the contract delivery prices (in dollars per ton) that prevail on each settlement date:

A．April 15 (initiation)

B．173.00

C．May 15

D．179.75

E．June 15

F．189.00

G．July 15

H．182.50

I．August 15 (delivery)

J．174.25
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单项选择题 B型题

阿司匹林肠溶片含量测定用（）

A.酸碱直接滴定法

B.色谱法

C.HPLC法

D.酸碱两步滴定法

E.UV法
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