________ is Japan\'s biggest plastics group.
A Mitsubishi Kasei B Mitsubishi petrochemical C Mitsui Petrochemical industries
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It can be inferred from the passage that lighthouses in the Northeast did NOT need
A. ships there had high masts.
B. coastal waters were safe.
C. the coast was straight and unobstructed.
D. the lighthouses were built on high places.
24. A. road B. method C. reason D. key
A．schoolworkB．exerciseC．teamworkD．research
A. schoolwork
B. exercise
C. teamwork
D. research
Jenny brought me a lot of jewels.
[A] to choose
[B] to choose from
[C] for choosing from
[D] to be chosen
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