AG增高反映体内发生()
A.高血氯性代谢性酸中毒
B.正常血氯性代谢性酸中毒
C.代谢性碱中毒
D.呼吸性酸中毒
E.呼吸性碱中毒
参考答案:B
It's getting dark. We'd better ________ in a hotel for the night.[ ]
A. set up
B. settle down
C. set out
D. settle up
下列过程中属于弹性势能转化为动能的是( )
A.熟透的苹果从树上落下
B.弹簧枪将“子弹”射出
C.蹦极者落下拉紧橡皮绳
D.秋千由低处摆向高处