【单选题】下列关于骨骼肌动作电位与收缩关系叙述,错误的是
D.
完全强直收缩是因为前一次阈上刺激引起的收缩还未到达顶点,新的阈上刺激就到达肌肉
【单选题】———Many companies post job ads onlines, you can still finde then in newspapers.
【单选题】25℃时,反应2H 2 S+SO 2 =3S↓+2H 2 O达到平衡时,其平衡常数为多少(已知25℃时,φ(S|H 2 S)=0.14V,φ(SO 2 |S)=0.45V):()。
【单选题】人突然受到寒冷刺激时,引起骨骼肌收缩而打寒颤。下列关于该反射的叙述,错误的是 [ ]
C.
该反射弧的反射中枢应包括大脑皮层、下丘脑和垂体
D.
寒冷刺激以电和化学信号的形式在反射弧中进行传导和传递
【单选题】Many companies have even appointed chief listening officers (CLO) to _______ online customer conversations and pass along key insights to marketing decision makers.
【单选题】Many companies have even appointed chief listening officers (CLO) to _______ online customer conversations and pass along key insights to marketing decision makers.
【单选题】25℃时,反应2H 2 S+SO 2 =3S↓+2H 2 O达到平衡时,其平衡常数为多少?()(已知25℃时,φ 0 (S/H 2 S)=0.14V,φ 0 (SO 2 /S)=0.45V)