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【单选题】
手术时确定腹股沟斜疝或腹股沟直疝的标志是A.
腹壁下动脉
B.
腹壁浅动脉
C.
胃左动脉
D.
胃网膜左动脉
E.
肝固有动脉
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【简答题】在 0.1mol /L HAc 中加入 0.1mol Na Ac 晶体,则溶液的 pH 值 ____ ,此现象是由 ____ 效应引起的。
【简答题】1 mol/L HAc 20m L溶液的 pH 为 ,在此体系中加入 0.1 mol/L NaOH10mL 溶液的 pH 为 。若加入 0.1 mol/L NaOH 20mL 溶液的 pH 为 。 ( K a,HAc =1.76 × 10 - 5 , p K a =4.75 )
【单选题】听力原文：W: Mary told me that she was going to quit her job. I'll certainly be sorry to see her go. M: Oh, she always says that! I wouldn't buy her a going-away present if I were you. Q: What does the man...
A.
She will go away.
B.
She will be sorry.
C.
She won't quit her job.
D.
She won't buy him a present.
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