病人因为情绪波动，出现胸胁痞闷不舒，肠鸣腹泻等症状，其病机是
A．肝气郁结
B．肝气乘脾
C．脾胃虚弱
D．大肠传导失司
E．肝气犯胃
参考答案：B
—Your coffee smells good!
—It's from Canada. Would you like _________? [ ]
A. it
B. some
C. this
D. little
用于混凝土的矿物掺合料有哪些？
