“螳螂捕蝉,黄雀在后”揭示的是动物之间的 [ ]
A.捕食关系
B.合作关系
C.竞争关系
D.互利关系
答案:A
(2013·高考湖北卷)Carbon dioxide,which makes a________between us and the sun,prevents heat from getting out of the atmosphere easily,so the earth is becoming warmer.
A.difference
B.comparison
C.connection
D.barrier
股肿病久,伴肢肿不消,沉重麻木,倦怠乏力等,常辨证为()
A.气滞血瘀
B.气虚血瘀
C.寒湿瘀滞
D.湿热下注
E.水湿内停