感生电动势的方向用（）来确定。
A.左手定则
B.右手定则
C.楞次定律
D.法拉第定则
参考答案：B
—Shall I take a message for you?
—Thank you. _____. [ ]
A. Let's hurry
B. I'm very annoyed
C. That's enough
D. That's very kind of you
急性胰腺炎患者，哪项指标不提示病情危重
A．血钙1.5mmol/LB．血糖升高，≥11.2mmol/LC．脐部皮肤紫斑D．腹膜刺激征E．黄疸
