B.End with a quotation.
C.End with a visual ai
D.End with thanking the audienc
E.
B.It is often just one sentence
C.It is always in the conclusion part.
D.Everything else in the paper supports this statement.
A、(1), (2) and (3)
B、(1) and (2)
C、(2), (3) and (4)
D、(1) and (4)
A.The author intends to discuss the issue of global warming with top government leaders.
B.The author lays stress on the research of the climate of the earth.
C.The author attaches paramount importance to the protection of the earth"s environment.
D.The author considers the relation between automating and environmental pollution.
A、if
B、whether
C、what if
D、that
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