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【简答题】
分光光度计由哪几部分构成?它的使用过程中注意哪些事项?
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反馈参考答案：
举一反三
【单选题】Student: Would it be convenient to see you today, Dr. Jones? Dr. Jones: Yes. I have the office hours the whole day. Student: I've been having trouble with my research project. Dr. Jones: ______ We'll ...
A.
Is anyone helping you out?
B.
I'm afraid I will be very busy.
C.
It doesn't sound good.
D.
You can come anytime.
【单选题】听力原文：W: Hello, Mr. Smith. This is Mary. I'm sorry to tell you that Dr. Brown has to change your appointment to tomorrow at the same time. His flight is late. He is still in New York now. M: Oh, well, ...
A.
In his office.
B.
At home.
C.
Not sure.
D.
In New York.
【单选题】- I have an appointment with Dr. Edward.- ________
A.
Please wait for a minute.
B.
Are you sick?
C.
Tell me about your appointment.
D.
Dr. Edward didn't tell me.
【单选题】Had I known what heppened, ______.
A.
I will tell you
B.
I will not tell you
C.
you will not know
D.
I would have tell you
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