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问题 单项选择题

输血时主要考虑供血者

A．红细胞不被受血者红细胞所凝集
B．红细胞不被受血者血浆所凝集
C．红细胞不发生叠连
D．血浆不使受血者血浆发生凝固
E．血浆不使受血者红细胞凝集

答案

参考答案：B

单项选择题

Consider the following two statements about putable bonds: Statement 1: As yields rise, the price of putable bonds will fall less quickly than similar option-free bonds (beyond a critical point) due to the increase in value of the embedded put option. Statement 2: As yields fall, the price of putable bonds will rise more quickly than similar option-free bonds (beyond a critical point) due to the increase in value of the embedded put option. Are these statements correct or incorrect（）

A. Statement 1 is correct and Statement 2 is incorrect. 

B. Both statements are incorrect. 

C. Statement 1 is incorrect and Statement 2 is correct.
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判断题

视在功率等于有功和无功的平房和。
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