只能注射给药，每天给药一次即可降血糖的药物是
A．胰岛素B．精蛋白锌胰岛素C．苯乙双胍D．氯磺丙脲E．甲苯磺丁脲
参考答案：B
积极的债券投资管理策略通常要考虑______。
A．市场利率水平的变化B．收益率曲线形状的变化C．某一债券收益率的变化D．以上皆是
0n the fully containerized ship, approximately one-third or more of the cargo is on deck above the rolling center. Top stowed containers are subject to（）.
A.acceleration greater than on conventional vessels
B.acceleration less than on conventional vessels
C.acceleration the same as on conventional vessels
D.no acceleration
