影响血浆钙离子浓度的原因是（）
A.血钙总量
B.血液pH值
C.血浆蛋白质含量
D.血浆胆红素浓度
E.血浆K+浓度
参考答案：A, B, C
There was __ a long line at the movies __ _we had to wait for a long time before we could get in.[ ]
A. so, that
B. such, that
C. too, to
D. quite, that
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