清暑益气汤中的君药是()。 ["西瓜翠衣、西洋参","西瓜翠衣、荷梗","西洋参、麦冬","荷梗、西洋参","荷梗、麦冬"]
3'端有多聚腺苷酸的RNA是() ["mRNA","rRNA","tRNA","hnRNA","snRNA"]
何谓食品等值交换份?
体内代谢产生的氨主要源于() ["氨基酸脱羧基","小肠吸收氨","氨基酸转氨基","氨基酸脱氨基","胃内吸收氨"]
清暑益气汤的功用是()。 ["清暑益气,养阴生津","清暑除烦,益气和胃","清暑利湿,益气和胃","清暑益气,和胃止呕","益气养阴,清透暑热"]
压缩机机油消耗过大的原因:一是;二是();三是()。