【单选题】完全垄断市场的特征是:某产品市场只有惟一的生产者,该类产品没有十分相近的替代品,且该生产者能够排斥竞争者进入此行业,因此他能够控制这类产品的供给,从而控制此类产品的售价。( )
【单选题】关于各种流产的特点以下哪项正确
A.
难免流产:阴道出血少并无组织物排出,腹痛轻,胎膜未破,宫口未开,子宫与停经周数相同,胚胎或胎儿存活
B.
先兆流产:阴道出血增多,腹痛加重,胎膜破裂,宫口已开大或有组织物堵塞,子宫与停经周数相同或略小
C.
不全流产:妊娠产物已部分排出但仍有部分残留宫腔,阴道出血持续增多,腹痛减轻,宫口已扩张或可见部分组织物堵塞,子宫小于停经周数,易发生失血性休克
D.
稽留流产:妊娠产物已全部排出,阴道出血逐渐停止,腹痛逐渐消失,宫口已关闭,子宫接近正常大小
【单选题】In the sentence 'He told me that his brother John is a world-famous doctor', the italicized part is used as
【多选题】以下关于天棚工程说法正确的是( )
B.
带梁天棚,梁侧面抹灰并入天棚抹灰工程量计算。
【单选题】—There is someone knocking at the door - who it be? — I think it is John. He told me he would come. [ ]
【判断题】烹调的基本过程包括:原料选用,原料初加工、切配,菜肴的烹调,莱肴的造型。
【单选题】John had ___ me to do this, but he didn't .
【单选题】John told me that he had lost his key to the car, but he didn't really lose it-that's just a(an)________. [ ]