硝苯吡啶可()
A.降低心脏前负荷
B.降低心脏后负荷和抑制心肌收缩力
C.扩张阻力性小血管和抗血小板聚集力
D.抑制大脑皮层达到镇痛
E.减慢心率和抑制心肌收缩力
参考答案:B
We all like Wang Ling because he is always ______ us , and he is very helpful .
A. friendly to B. angry with C. mad at.
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