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【多选题】
瓦屋面防水工程量计算时，按屋面斜面积计算，不扣除（ ）。A.
烟囱
B.
屋面小气窗
C.
斜沟
D.
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举一反三
【单选题】Who is the writer of “Sons and Lovers”?
A.
D. H. Lawrence
B.
Henry James
C.
George Owell
【判断题】The writer ’ s sons came to the pine tree often after their grandmother died because their grandmother used to take them there.
A.
正确
B.
错误
【单选题】What's the name of Gongzi's sons?
A.
Gongsun
B.
Gongzhu
C.
using gongzi's zi as their shi
D.
Sima Shi
【单选题】Yvonne Webster's sons occasionally took drug in school, so she searched the boy's rooms and went through their pockets.
A.
Y
B.
N
C.
NG
【简答题】（7分）溶液是生活中常用的混合物。 （1）硫酸铜溶液可用于游泳池消毒，硫酸铜溶液中的溶质是 。 （2）市售的过氧乙酸（CH 3 COOOH）溶液中溶质的质量分数大多为40%，稳定性差，室温下就可分解成乙酸（CH 3 COOH），并释放出氧气，该反应的化学方程式为 。将40% 的过氧乙酸溶液稀释成2%，可用于空气消毒， 稀释过程中浓溶液与所加水的质量比为 。 （3）甲、乙两种固体物质的溶解度曲线如图...
【判断题】The writer’s sons came to the pine tree often after their grandmother used to take them there.
A.
正确
B.
错误
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