脾经与胃经交接在：
A．四缝B．中脘C．三阴交D．足三里E．百虫窝
参考答案：C
He feels lonely in the school because he has _____ friends.[ ]
A. a few
B. few
C. a little
D. little
简述制订应急预案的原则是什么？
