电学基础知识中,“电磁波呈波状传播,从一个波峰至下一个波峰之间的长度”称为()
A.电场
B.电磁场
C.电磁波
D.电磁波的波长
E.电磁波的传播速度
参考答案:D
— Incredible! There are no evening classes, no homework, but everyone works so hard to achieve their goals.
— Exactly. That is what I like _____ the new school. [ ]
A. for
B. about
C. to
D. with
于用胰岛素治疗的患者反映胰岛β细胞分泌功能的较好指标是()
A.胰岛素
B.C-肽
C.胰岛素原
D.胰岛素抗体
E.胰高血糖素