外表面淡灰棕色或灰褐色,断面有细密、银白色、富弹性的橡胶丝相连,气微的药材是A.合欢皮 B. C.皮 D.杜仲 E.地骨皮 外表面灰白色,有羊膻气的药材是A.合欢皮 B. C.皮 D.杜仲 E.地骨皮 外表面灰棕色至灰褐色,密生棕色或棕红色,气微香的药材是A.合欢皮 B. C.皮 D.杜仲 E.地骨皮
【判断题】For the home country, the current account of the balance of payments improves if the purpose of the foreign investment is to serve the home market from a low-cost production location. 对于母国来说,如果对外投资的目的...