下列关于急性肾小球肾炎发病机制的叙述，错误的是（　　）。

A．SELECT * FROM student WHERE YEAR(birthday) NOT IN(1997, 1999);
B．SELECT * FROM student WHERE YEAR(birthday) IN(1997, 1999);
C．SELECT * FROM student WHERE YEAR(birthday)=1997 AND YEAR(birthday)=1999;
D．SELECT * FROM student WHERE YEAR(birthday) EXISTS(1997, 1

A.纤维蛋白原减少
B.脾功能亢进破坏血小板增多
C.凝血酶原减少
D.凝血因子X减少
E.凝血因子Ⅶ合成减少

A.I=P·i·n
B.F=P·i·n
C.F=P(1+i·n)
D.F=P(1+i)n