影响生球干燥速度的因素有哪些？
参考答案：
基本包括三个方面：
1、干燥介质的状态；
2、生球的理化性质；
3、干燥球层的厚度。
Biggs, Inc., holds a bond portfolio that is, on average, trading below par value. They have faced some cash flow problems of late and have used the bond interest payments for operating expenses. The bonds are callable. Given the current situation, Biggs faces which types of risk（）
A. Interest rate risk.
B. Interest rate risk and reinvestment risk.
C. Interest rate risk and call risk.
处理好执 * * 与行 * * 关系的关键在于党切实做到依法行政，民主执政和（）。
A.科学执政
B.司法执政
C.公民执政
