绘图题:简述图E-49的动作过程。
KA-电流继电器;KT-时间继
电器;KCO-出口继电器;
YT-跳闸线圈;K-负控
终端遥控跳闸继电器
KA-电流继电器;KT-时间继
电器;KCO-出口继电器;
YT-跳闸线圈;K-负控
终端遥控跳闸继电器
第2题
A."Indirectly, relativity paved the way for a new relativism in morality, art and politics,"Isaacson wrote in an essay explaining Time"s choices.
B.How he thought of the relativity theory influenced the general public"s view about Albert Einstein.
C."Clearly, no scientist better represents those advances than Albert Einstein."
D.Roosevelt heeded the advice and formed the "Manhattan Project" that secretly developed the first atomic weapon.
E.In his early years, Einstein did not show the promise of what he was to become.
F.In his "Special Theory of Relativity," Einstein described how the only constant in the universe is the speed of light.
第6题
A.呋塞米
B.地高辛
C.硝酸甘油
D.扎莫特罗
E.卡托普利
第 49 题 增加心肌细胞内的Ca2+浓度,从而加强心肌收缩力用于治疗慢性心功能不全( )
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