问题
单项选择题 A1型题
胆汁能保持胶团溶液主要有赖于（）
A.胆汁中正负电荷平衡
B.有适量的电解质
C.胆道分泌黏液
D.胆盐与磷脂的比例
E.胆汁持续流出胆道
答案
参考答案：D
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胆汁能保持胶团溶液主要有赖于（）
A.胆汁中正负电荷平衡
B.有适量的电解质
C.胆道分泌黏液
D.胆盐与磷脂的比例
E.胆汁持续流出胆道
参考答案：D
On a cold winter morning I heard someone trying to get their car out of the snow after a snowstorm. After a few minutes I realized they needed a(n) __小题1:__, so I got dressed ,went __小题2:__, and pushed the car. It only took about a minute and, __小题3:__ more cold than sociable(交际的), I walked back to my apartment, __小题4:__ really seeing the driver. Months ___小题5:__ I was at the corner store and the guy in front of me __小题6:_ on paying for the beer I was buying! It felt a bit __小题7:__ and I had to refuse repeatedly. When I __小题8:__ the cashier she told me my stuff was already __小题9:___ and she couldn't take my money. So, I was walking back home from the store and that __小题10:__ guy is fifty feet in front of me, all the way! It __小题11:__that he's my neighbor, living in the apartment complex(公寓大楼) just after mine! As we __小题12:__ the stairs of our separate apartment buildings I __小题13:__, "Thanks for the beer!" He replied, "__小题14:__. Thanks for helping me push my car that time!" I didn't __小题15:_ him and told him it wasn't me. He said "Oh! Okay. Well, still ... enjoy!" A few days later I __小题16:_ him getting into his car and I realized __小题17:__ he was and that it actually had been me who __小题18:__ him that day! Maybe one day soon I'll tell him he bought __小题19:__ for the right guy! Either way, it feels nice to help, and when you put __小题20:__ into the world, it eventually comes back to you!
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