右归丸的适应证是
A．川芎B．当归C．黄芪D．附子E．白芍
参考答案：D
煤气公司销售的煤气，不属于增值税的征税范围。()
—Why not _______ John a toy car for his birthday?
—Good idea! He is crazy about cars.[ ]
A. buy
B. buying
C. to buy
D. buys
