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The purpose of treating the cooling water of the diesel engine is to______. I、 resist the

A. I + II
B. II + III
C. III + IV
D. I + IV

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在2005年1月，个人和企业持有的现金为6 996亿美元，旅行支票为75亿美元，个人和企业支票存款为6 492亿美元，储蓄存款为35 447亿美元，小额定期存款为8 245亿美元，货币市场资金和其他存款为7 114亿美元。 a．2005年1月的M1是多少？ b．2005年2月的M2是多少？

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作为支付手段被普遍接受的任何商品或者标志的是。一个在产品和服务交易时被普遍接受的东西是(计价单位；价值储藏；交易媒介)。(计价单位；价值储藏；交易媒介)是公认的表示产品和服务价格的衡量标准。(计价单位；价值储藏；交易媒介)是能够被持有并用来以后交换产品和服务的任何商品或符号。银行的现金(是；不是)货币，银行外的现金(是；不是)货币。信用卡(是；不是)货币。M1(多于；少于)M2。支票账户存款(属于；不属于)M1，储蓄存款(属于；不属于)M1。

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The main propulsion diesel engine jacket water temperature rises above normal, with the raw sea suction and the expansion tank water level being normal. Which of the following problems is most likely the cause？

A. Faulty thermostatic bypass valve
B. Eroded zinc pencils in the heat exchanger
C. Steam formation in the expansion tank
D. Excessive leakage from jacket water pump seals

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Springs in fuel injectors will become not strong enough to work because______.

A. the injector opens at a lower pressure than designed
B. the needle valve and seat wear out
C. the nozzle holes wear out
D. long time in use

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The purpose of treating the cooling water of the diesel engine is to______. I、 resist the

A. I + II B. II + III C. III + IV D. I + IV

The main propulsion diesel engine jacket water temperature rises above normal, with the raw sea suction and the expansion tank water level being normal. Which of the following problems is most likely the cause？

Springs in fuel injectors will become not strong enough to work because______.

A. I + II
B. II + III
C. III + IV
D. I + IV