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【简答题】
为什么近代轿车汽油机普遍采用多气门机构？它有什么优缺点？柴油机为什么较少采用多气门？2气门改为4气门时，为什么功率上升的百分比要比转矩增加的百分比大得多？
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】商业银行的负债业务主要由（ ）构成。
【简答题】---The novel gone with wind is said __________ into several language. A．to translate B．being translated C．having been translated D．to have been translated
【单选题】The visitors are now driving past the houses ______ were described in the famous novel Gone With the Wind.
A.
what
B.
when
C.
which
D.
why
【简答题】完成 “01111110” 序列发生器的设计。
【简答题】简述国外电子支付立法状况
【单选题】The novel Gone with the Wind is set during _____________.
A.
the colonial period
B.
War of Independence
C.
Westward Expansion
D.
the Civil War
【单选题】---Must I give the novel Gone With the Wind back to the school library now? ---No, you _______. You can _________it for one month.
A.
needn’t; borrow
B.
mustn’t; lend
C.
mustn’t; keep
D.
needn’t; keep
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