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【单选题】
原子吸收分光光度计中光源的作用是( )。A.
提供试样吸收的紫外光
B.
发射待测元素原子的特征共振线
C.
提供试样蒸发所需的能量
D.
提供试样原子化过程所需的能量
E.
产生具有足够强度的散射光
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举一反三
【单选题】听力原文：M: Did you go to the big sale at Spencer's yesterday? W: I had to visit my aunt in the hospital. Q: What does the man mean? (19)
A.
He thinks she bought something for her aunt.
B.
He thinks she might have been there.
C.
He thinks she was there only briefly.
D.
He thinks she went to it on her way to the hospital.
【单选题】---I had a really good weekend at my aunt’s. -______.
A.
Oh, that’s very nice of you
B.
Congratulations
C.
It’s a pleasure
D.
Oh, I’m glad to hear that
【简答题】民不易物,惟德繄物。繄:( )
【单选题】—I had a really good weekend at my aunt's. —
A.
Oh,that，s very nice of you
B.
Congratulations
C.
Oh,I’m glad to hear that
【单选题】听力原文：Despite Tom's affirmations of innocence, Aunt Polly still suspected he had eaten the pie. (26)
A.
Aunt Polly thought that Tom was the one who ate the pie.
B.
Aunt Polly believed that Tom didn't eat the pie.
C.
Aunt Polly ate the pie herself and Tom was innocent.
D.
Aunt Polly suspected that Tom's pie was eaten by someone.
【单选题】Eli’s aunt had a positive______________ on him. She helped him to become a better student.
A.
respect
B.
influence
C.
valuable
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