甲状腺旁素的生理作用是( )
A. 升高血钙
B. 降低血钙
C. 升高血糖
D. 降低血糖
调节胰岛素分泌的最主要的因素是()
A. 血液中氨基酸水平
B. 血糖水平
C. 血液中脂肪酸水平
D. 血液中Na+浓度
According to the Negotiable Instruments Law of the People's Republic of China (2004 Revision)No presentation for acceptance is necessary for a bill of exchange payable at sight.
A. 对
B. 错
According to the Negotiable Instruments Law of the People's Republic of China (2004 Revision)An endorsement without date shall be regarded as an endorsement after the maturity date.
A. 对
B. 错