水环式真空泵叶片端部与泵盖、泵壳之间间隙应限制在()。
A.0.1~0.2mm
B.0.1~0.3mm
C.0.2~0.4mm
D.0.2~0.5mm
参考答案:A
汤某女,36岁,素抑郁多忧,情志不舒,两天前生气后出现胃脘胀痛,攻撑连胁,嗳气则舒。疼痛每因情志因素而增减,苔薄白,脉弦。
该病证属()
A.肝气郁结
B.肝气犯胃
C.肝胆湿热
D.肝胃郁热
E.肝胃阴虚
A man cannot smile like a child , a child smiles with his eyes , while a man smiles with his lips alone. [ ]
A. so
B. but
C. and
D. for