Num其特征温度为（）。 A.
流体温度 B.
平均温度 C.
壁面温度 D.
不定

磁共振质子群能态跃迁，是指：（ ）The energy state transition of proton ...

单项选择题 磁共振质子群能态跃迁，是指：（ ）The energy state transition of proton group in magnetic resonance is defined as （ ）
A、低能态跃迁到中等能态Transition from low energy state to medium energy state
B、中等能态跃迁到高能态Transition from medium energy state to high energy state
C、高能态跃迁到低能态Transition from high energy state to low energy state
D、低能态跃迁到高能态Transition from low energy state to high energy state

单项选择题

右图符合流程图的特点。

判断题右图符合流程图的特点。