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举一反三
【简答题】引入先行进位概念的目的是提高（ ）
【单选题】在一定的温度下,向饱和 BaSO 4 溶液中加水,下列叙述正确的是
A.
BaSO 4 的溶解度， K sp 均不变
B.
BaSO 4 的溶解度增大
C.
BaSO 4 的溶解度， K sp 均增大
D.
BaSO 4 的 K sp 增大
【单选题】Match the words with correct definition as follows. incubation ( ) motivate ( ) ideation ( ) diverse ( ) integral ( ) empower ( ) avid ( )
A.
the process of forming and relating ideas
B.
existing as an essential constituent or characteristic
C.
ardently or excessively desirous;marked by interest and enthusiasm
D.
maintaining something at the most favorable temperature for its development
E.
to give power or authority to do something
F.
to give powr an incentive for action
G.
many and different; distinctly dissimilar or unlike
【单选题】在一定温度下向饱和BaSO4溶液中加入少量的H2SO4,会发生:
A.
BaSO4的Ksp减小
B.
BaSO4的Ksp增大
C.
BaSO4继续溶解
D.
产生BaSO4沉淀
【简答题】Task 1 Fill in the blanks with the words or phrases from Reading A and Reading B that match the meanings in the column on the right. The first letters are already given. p ____1______ likely to become...
【单选题】在一定温度下向饱和BaSO4溶液中加入少量H2SO4,会发生( )
A.
BaSO4的Ksp减小
B.
BaSO4的Ksp增大
C.
BaSO4继续溶解
D.
继续产生BaSO4沉淀
E.
BaSO4溶解度不变
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