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【单选题】
已知 K b ɵ (NH 3 ·H 2 O)=1.8×10 -5 ,用 NH 3 ·H 2 O 和 NH 4 Cl 配制 pH=9.00 的缓冲溶液时, c (NH 3 ·H 2 O)/ c (NH 4 Cl)= ( )。A.
5.6
B.
0.56
C.
18
D.
3.6
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【单选题】A good storyteller must be able to hold his listeners’curiosity ________he reaches the end of the story.
A.
when
B.
unless
C.
after
D.
until
【单选题】下列表述中是规范分析的是（ ）
A.
社会面临着通货膨胀与失业之间的短期权衡取舍
B.
减少货币增长率将降低通货膨胀率
C.
社会应该要求福利者去找工作
D.
美联储将低货币增长率
【单选题】The bread comes in many different shapes; hearts are the most popular. Shapes are .
A.
the way things taste
B.
the outer form
C.
ways to cook food
【简答题】A. arrived I.relatively B.consuming J. remains C.direct K. resources D.exclusively L. staple E. including ...
【单选题】Some people argue that university education should be made _____ to most people, not only to good students.
A.
available
B.
considerable
C.
varied
D.
extinct
【简答题】The different shapes of the containers 3 they were used to brew, filter, and store beer.
【简答题】请翻译以下句子: Black tea can be drunk alone, and also can be mixed with milk, cubic sugar, spices, fruit juice or alcohol, to be served as appetizing romantic beverage. Chinese tea can be classified in diff...
【判断题】The multiplicity of functions carried out by proteins arises from the huge number of different shapes they adopt.
A.
正确
B.
错误
【简答题】The method for beer has changed over time. Hops (啤酒花), for example, which give many a modern beer its bitter flavor, are a __1__ recent addition to the beverage. This was first mentioned in ref...
【简答题】The method for beer has changed over time. Hops (啤酒花), for example, which give many a modern beer its bitter flavor, are a __26__ recent addition to the beverage. This was first mentioned in re...
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