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【单选题】
采用节流阀的进油路节流调速回路中,当负载增大后,液压缸进油腔压力 ( ) 。A.
增大
B.
减小
C.
不变
D.
不确定
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举一反三
【单选题】According to the passage, which of the following is true about Native American traditions of conservation?
A.
They were known in the past.
B.
They won’t be replaced by the new ones.
C.
They show that not all new ideas are correct.
D.
They are neglected nowadays.
【单选题】Why does the professor mention the effect of education on Native American societies?
A.
to indicate the content of a course he thinks the woman should take.
B.
to learn more about the woman's experiences over the summer.
C.
to describe a research project he thinks the woman would find interesting
D.
to show his approval of the woman's career goals.
【单选题】听力原文：M: The native American craft exhibit closed this afternoon. W: Oh, no. I've wanted to see that for months. Q: What does the woman imply? (14)
A.
She wanted to show people her crafts.
B.
She has seen the exhibition.
C.
She'd rather go hack home.
D.
She's sorry to have missed the exhibit.
【简答题】Part 3 Multiple choice 1. What is the main purpose of the talk? A. To contrast Native American and European concepts of resources B. To explain why Native Americans valued personal alliances C....
【单选题】The example of Native American Iroquois is used in paragraph 2 to ______.
A.
show the differences between nations and states
B.
discuss the differences between internal and external affairs
C.
indicate their strive to form. a state
D.
present their identity as a people
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