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【单选题】
心室肌细胞动作电位1期复极主要是由于A.
K+外流
B.
Cl-内流
C.
Na+内流
D.
Ca2+内流
E.
K+内流
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皮皮学刷刷变学霸
举一反三
【单选题】After reading the passage, what can we infer about Shakespeare?
A.
He received a good education in a local school.
B.
He was poor and without friends throughout his life.
C.
He made a wise decision in leaving his hometown.
D.
He was happily married to Anne Hathaway.
【简答题】下列哪个是肿瘤相关抗原?