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【单选题】
测量时吸光度值过大,与( ) 无关A.
样品浓度
B.
比色皿厚
C.
测定波长
D.
灯电流
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举一反三
【简答题】The woman was seriously injured in the traffic accident. The little boy had no choice but to look on (help) ______.A. helplessly
【单选题】-- Don't play football in the classroom. --___________.
A.
No, I don' t.
B.
Sorry, we won't do it again. D. Why don' t we.9 D. Yes, we won' t do it again.
【单选题】Sorry，we don’t allow ________ in the lecture room.
A.
to smoke
B.
smoke
C.
smoking
D.
to smoking
【单选题】I’m sorry,sir.“我们不收美金.”汉译英是( )。
B.
We don’t accept RMB. B.We don’t accept pounds.
C.
We don’t accept dollars.
D.
We don’t accept yuan.
【简答题】The woman got into a p___________ when she heard that her son had been injured in the accident.
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