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【单选题】
And there, almost _____ in the big chair, sat her little brother, who never had to be told to keep quiet.A.
having lost
B.
losing
C.
to be lost
D.
lost
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【简答题】I 2 + HNO 3 ( 浓 ) ——
【简答题】( ) Ashe used this technique to win Wimbledon
【简答题】Arthur Robert Ashe Jr. was the first African-American player to take part in the international sport of tennis at the highest level of the . He was born on July 10, 1943. When Arthur was 6, his mo...
【单选题】Arthur Ashe is an example of an athlete who used _____ to improve performance.
A.
superstitions
B.
cross-training
C.
visualization
【单选题】Why was the woman at the airport?
A.
She was traveling on business.
B.
She was seeing the man off .
C.
She was leaving for Greece.
【简答题】（Ｉ)（10分）某自主学习小组用HNO 3 与大理石反应过程中质量减小的方法，探究影响反应速率的因素。所用HNO 3 浓度为1.00 mol·L －1 、2.00 mol·L －1 ，大理石有细颗粒与粗颗粒两种规格，实验温度为298 K、308 K，每次实验HNO 3 的用量为25.0 mL，大理石用量为10.00g。请完成以下实验设计表，并在实验目的一栏中填出对应的实验编号： 实验编号 T /K...
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