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【单选题】
下列化学反应ΔH的数值（放热）最大的是（ ）A.
NaOH(aq)+HCl(aq)====NaCl(aq)+H 2 O(l);ΔH 1
B.
NaOH(aq)+ H 2 SO 4 (aq)==== Na 2 SO 4 (aq)+H 2 O(l);ΔH 2
C.
CH 3 COOH(aq)+NaOH(aq) ====CH 3 COONa(aq)+H 2 O(l);ΔH 3
D.
NaOH(aq)+ H 2 SO 4 (浓)==== Na 2 SO 4 (aq)+H 2 O(l);ΔH 4
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【单选题】A.E. takes several drugs to prevent or act against his inflammatory response. These agents are called ______________drugs.
A.
contrainflammatory
B.
counterinflammatory
C.
antiinflammatory
D.
proinflammatory
【单选题】关于 TOP原则,阐释不正确的是
A.
T 代表时间、季节和时令
B.
P代表地点、场合、职位
C.
O代表目的
D.
它的含义， 是要求人们在选择服装、考虑其具体款式时，首先应当兼 顾 时间、地点、目的 ，体现出强烈地个人意愿和个人倾向性。
【简答题】在473K时，反应PCl 5 （g） PCl 3 （g）＋Cl 2 （g）的K＝4.6×10 － 3 mol·L － 1 。 ⑴若PCl 5 初始浓度为0.020 mol·L － 1 。求PCl 5 的转化率。 ⑵PCl 5 初始浓度为多大时，PCl 5 的转化率为50%？
【简答题】Several methods are ______ to name and classify the traditional Chinese drugs, such as the parts used to be drug, the flavors of drug, etc.
【单选题】Mornings at Seven For several years now my newsagent has been spelling my name incorrectly. Every morning I glance hopelessly at the top right - hand corner of my newspaper and wince. There is somethi...
A.
desperate and disgusting
B.
depressed and grieving
C.
evil and curing
D.
embarrassing and hopeless
【单选题】有的幼儿吃得快或吃得多或吃的干净,而有的幼儿则吃的慢或吃得少或吃得不太干净,这里的评价应采用哪种方式?
A.
绝对评价
B.
相对评价
C.
个体内差异评价
D.
宏观评价
【单选题】Mornings at Seven For several years now my newsagent has been spelling my name incorrectly. Every morning I glance hopelessly at the top fight - hand comer of my newspaper and wince. There is somethin...
A.
desperate and disgusting
B.
depressed and grieving
C.
evil and curing
D.
embarrassing and hopeless
【单选题】?Read the article below about brand-name prescription drugs, and the questions on the opposite page. ?For each question 13--18, mark one letter (A, B, C, or D) on your Answer Sheet for the answer you ...
A.
A quarter of Americans can't afford their prescription drugs.
B.
Many Americans can't afford to see a doctor when they fall ill.
C.
Many Americans have to go to Canada to get medical treatment.
D.
The inflation rate has been more than doubled over the years.
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