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大柴胡汤与大承气汤主治的症状中有

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给定关系R(A1,A2,A3,A4)上的函数依赖集F={A1A3→A2,A2→A3),R候选关键字为(1)。分解p={(A1,A2),(A1,A3)} (2)。

A1A3
B. A1A2A3
C. A1A3A4
D. A2和A1A3

急性危重哮喘发作时如需静脉滴注糖皮质激素,最好选用

临床药学的执行者

Which of the following $1 000 face-value securities has the highest yield to maturity?______.

A 5% coupon bond selling for $1 000
B. A 15% coupon bond selling for $1 000
C. A 10% coupon bond selling for $1 000
D. A 15% coupon bond selling for $900

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