We will do all we can to relieve (缓解) the symptoms of the patients: that is our______.
A. bottom line
B. basic line
C. deadline
D. bottom up
出自:中北大学-大学英语1

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块