Which of the followings is Ser/Thr kinase? A: Protein kinase A B: MAPK C: Protein kinase C D: Protein kinase G E: MEK

Which of the following signaling molecules could be directly activated by Ca ion binding? A: cAMP B: Calmodulin C: Protein kinase A D: Protein kinase B E: Protein kinase G

关于平面回波成像EPI序列,叙述错误的是( ) A: EPI是一种快速成像技术 B: EPI要求快速的相位编码梯度的切换 C: EPI对频率编码梯度的切换要求不高 D: EPI可以是单次激发或多次激发 E: EPI可产生不同的对比

protein kinase C system，PKC system (PKC系统)

梯度回波EPI是在（） A: 180o脉冲后利用EPI采集技术采集自旋回波链 B: 90o脉冲后利用EPI采集技术采集自旋回波链 C: 90o脉冲后利用EPI采集技术采集梯度回波链 D: 180o脉冲后利用EPI采集技术采集梯度回波链 E: 90o脉冲后利用EPI采集技术采集自旋回波链

梯度回波EPI是在（） A: 180o脉冲后利用EPI采集技术采集自旋回波链 B: 90o脉冲后利用EPI采集技术采集自旋回波链 C: 90o脉冲后利用EPI采集技术采集梯度回波链 D: 180o脉冲后利用EPI采集技术采集梯度回波链 E: 90o脉冲后利用EPI采集技术采集自旋回波链

Which one of the following enzymatic reactions is reversible? ( ) A: The reaction catalyzed by glycogen phosphorylase B: The reaction catalyzed by phosphoglycerate kinase C: The reaction catalyzed by pyruvate kinase D: The reaction catalyzed by fructose bisphosphatase-1 E: The reaction catalyzed by hexokinase

中国大学MOOC: In the NF-kB signaling pathway, which of the following molecules is downstream of I-kB kinase?

梯度回波EPI序列常用于灌注成像

关于平面回波成像EPI序列,叙述错误的是