Why does the professor mention fingerprints？
A. To demonstrate that blood types are different for individuals
B. To explain how most of the blood tests are performed
C. To explain why O blood is considered universal
D. To help students remember the different antigens
查看答案
Which section includes the conclusions？
A. Discussion
B. Results
Chart
D. Introduction
The phrase realize its potential in the passage is closest in meaning to
A. recognize its success.
B. exploit it.
C. measure its capacity.
D. manufacture it.
Why does the professor say this:
A. To emphasize the importance of commercials
B. To correct something that he said earlier
C. To identify the time limits for most commercials
D. To relate new information to a previous example
Why does the professor say this:
A. She doesn't think the point is very important.
B. She is trying to finish the lecture on time.
C. She thinks the idea will fit in better later on.
D. She doesn't want the student to interrupt her.
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