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【单选题】
在紫外可见分光光度计中，用于可见光区的光源是( )。A.
氢灯
B.
重氢灯
C.
钨灯
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皮皮学刷刷变学霸
举一反三
【单选题】——Did you see Lucy last night ?She must have left home as she was wondering round the town at midnight . ——The fact that she was wondering round the town at midnight she had left home for good .
A.
was not meaning
B.
does not mean
C.
was not mean
D.
would not mean
【单选题】3She stared at the painting, wondering where she it.
A.
saw
B.
has seen
C.
sees
D.
had seen
【单选题】Her remarks left me wondering ______ she could have changed so suddenly.
A.
when
B.
how
C.
whether
D.
what
【简答题】I _____ (am wondering/was wondering) if she could give us the chance.
【单选题】She stared at the painting, wondering where she ______it.
A.
saw
B.
has seen
C.
sees
D.
had seen
【单选题】She stared into the overwhelming darkness, wondering if he was as aware of her presence as ______.
A.
she was of his
B.
she was of him
C.
she did of him
D.
she did of his
【单选题】_____herself wondering whether she had made a mistake, she felt embarrassed and at a loss.
A.
Catching
B.
Caught
C.
Being caught
D.
Having been caught
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