【单选题】最能说明肝硬化病人已存在门脉高压的表现是
【多选题】钢包精炼炉吹氩搅拌的作用()。
A.
底部吹氩可是钢包中的钢液产生环流,是钢液的成分和温度迅速的趋于均匀
B.
搅拌的钢液增加了钢中非金属夹杂碰撞长大的机会
C.
扩大渣,金属反应面,加速反应物质的传递,提高反应速率
D.
对于开浇温度有比较严格要求的钢种或浇注方法,都可以用吹氩的方法
【单选题】钢包吹氩搅拌的作用,下列说法不正确的是()
【单选题】最能说明肝硬化病人已存在门脉高压的表现是
【多选题】Which sentences are synesthesia? (multiple choice)
A.
His action towards his motherland proved to be a Judas' kiss.
B.
Taste the music of Mozart.
C.
The birds sat upon a tree and poured forth their lily like voice.
D.
Never be exalted over apremature success, as it oftern turns out to be a Pandora's box.
【单选题】This multiple-choice test ____________ 40 incomplete sentences with several choices to complete them.
【判断题】竞争者是企业的目标市场,是企业服务的对象,也是营销活动的出发点和归属 。