单项选择题
What is the purpose of the intake/exhaust valves in a diesel engine ________.
A.They regulate the combustion cycle
B.They supply cooling water
C.They synchronize the ignition spark
D.They supply and regulate the lubricant flow
A.A.They
B.They
C.They
D.They
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单项选择题
社会性别主流化将性别观点纳入公共决策,让不同性别能平等取得()。 A、地位 B、社会资源 C、权利 D、都不正确
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单项选择题
A.图(a)B.图(b)C.图(c)D.图(d)
A.图(a)
B.图(b)
C.图(c)
D.图(d)
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