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【简答题】
锻件加热方法有( )和( )。
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反馈参考答案：
举一反三
【简答题】引入先行进位概念的目的是提高（ ）
【简答题】请完成P49练习四 match the words with the definition enviroment 2. working life 3. strain 4. office aerobics 5. stretch 6. posture a. when a muscle works too hard b. make something longer ...
【单选题】一段粗细均匀的镍铬合金丝,横截面的直径为 d ,电阻为 R ,如果把它拉成直径为d/4 的均匀细丝,电阻值将变为( )
A.
R/16
B.
16R
C.
256R
D.
R/64
【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
【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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