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【单选题】
阿司匹林的pKa是3.5,它在pH为7.5肠液中可吸收约:
A.
1%
B.
0.1%
C.
0.01%
D.
10%
E.
99%
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【简答题】、三相对称电源做星形连接,线电压 Ul与相电压Up的相位差是 30°,UL= UP。
【简答题】Murphy征阳性见于:() A急性肝炎 B急性阑尾炎 C急性胆囊炎 D急性腹膜炎
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【判断题】Murphy征阳性见于急性肝炎
A.
正确
B.
错误
【单选题】Murphy征阳性见于
A.
急性胰腺炎
B.
急性阑尾炎
C.
急性胆囊炎
D.
消化性溃疡
E.
急性肝炎
【简答题】三相对称电源做星形连接,线电压Ul与相电压Up的相位差是( ),UL=( )UP。
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