【单选题】由英国古典经济学家李嘉图提出的国际贸易理论是()。
【单选题】现代医学已开始主张以下列哪一项指标作为死亡的依据
【单选题】盐酸、醋酸和碳酸氢钠是生活中常见的物质.下列表述正确的是( )
A.
在NaHCO 3 溶液中加入与其等物质的量的NaOH,溶液中的阴离子只有CO 3 2- 和OH -
B.
NaHCO 3 溶液中:c (H + )+c (H 2 CO 3 )=c(OH - )
C.
10 mL0.10mol?L -1 CH 3 COOH溶液加入等物质的量的NaOH后,溶液中离子的浓度由大到小的顺序是:c(Na + )>c(CH 3 COO - )>cOH - )>c(H + )
D.
中和体积与pH都相同的HCl溶液和CH 3 COOH溶液所消耗的NaOH物质的量相同
【单选题】韦纳的归因理论是当前最有影响的理论,韦纳根据三个维度对成败的原因进行分类,下列不是属于这三个维度()
【单选题】In my view, biology is ______ chemistry, but a little easier than mathematics.
A.
a subject so difficult as
B.
as difficult a subject as
C.
as a difficult subject as
D.
difficult as a subject as
【单选题】要素禀赋理论的提出者是经济学家赫克歇尔和______
【判断题】营利性组织的营销以提高竞争力、增强获利能力为目标,目的性强、针对性强。
【简答题】根据材料回答5~8题 By sayin9“It's not much”(Line 1,Para.1),the authormeans that Chan's flat__________. [A]is cheap[B]has cheap furniture[C]has a design[D]is fairly small
【单选题】In my view, biology is _____ chemistry, but a little easier than mathematics. [ ]
A.
a subject so difficult as
B.
a subject as difficult as
C.
as a difficult subject as
D.
difficult as a subject as