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【单选题】
(2 分 ) 催化裂化反应随反应深度加大( )A.
气体产率先增大后减少
B.
焦炭产率先增大后减少
C.
汽油先增大后减少
D.
各产物产率不变
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】Read the dialogue and answer the following questions. Write T for Teri, S for Scott and B for both. 填写序号即可 1. generally gets good marks? 2. has bad marks in maths? 3. likes maths? 4. likes the maths t...
【单选题】Look, the Maths teacher with his students _________on the grass to have a good rest at present.
A.
is lying
B.
is lieing
C.
are lying
D.
be lying
【单选题】价值、价格、供求关系三者之间的关系是
A.
价值决定价格，价格决定供求关系
B.
价格由价值决定，价值由供求关系决定
C.
价格以价值为基础并受供求关系影响
D.
供求关系影响价值，价格影响价值
【单选题】Later, the naughty boys _____ to the Maths teacher for having played a trick on her the other day.
A.
apologized
B.
introduced
C.
turned
D.
complained
【单选题】The maths teacher told the naughty boys _____ so muchnoise in class.
A.
not making
B.
not to make
C.
don’t make
D.
didn’t make
【简答题】图中箭头所指的工具的该结构名称是( )。
【简答题】图中箭头所指工具的该结构名称是( )。
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