血清钾浓度低于__________mmol/L,称为低钾血症;血清钾浓度高于__________mmol/L,称为高钾血症。
参考答案:3.5|5.5
“在中国有着悠久的历史。独特的刀味与木味使它在中国文化艺术史上具有独立的艺术价值与地位。”这是指()
A、国画
B、木版画
C、水彩画
D、壁画
There was such a long queue for coffee at the interval that we_________gave up.
A.eventually
B.unfortunately
C.generously
D.purposefully