Part B (10 points)
You are going to read a list of headings and a text about science. Choose the most suitable heading from the list for each numbered paragraph. The first paragraph of the text is not numbered. There is one extra heading which you don't need to use.

A.
B.
C.
D.
E.
F...'
G.
H.
I.
J.
K.
L.
Notes:
M...有约束力。parasite

【参考答案】

E
E 解析：本题要求选择段落标题填入空白处，使段落标题和段落内容保持一致。第1段中作者谈到科学实验的方法，即'......

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