精甲醇产品中水分超标的主要原因是()
A、精馏塔塔釜温度高;
B、回流比大;
C、采出温度过高。
参考答案:C
—What is the price of your skirt, Lucy? It looks so pretty.
—It _________ me more than 120yuan.
A. paid B. cost C. spent
急性肾盂肾炎的常见并发症()
A.败血症
B.肾急性坏死性 * * 炎
C.肾周围脓肿
D.肾小球肾炎
E.肾盂积脓