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男子乳房属：

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男子乳头属：

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【B2】

A. only if
B. much as
C. long before
D. ever since

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Which of the following is not true of Incoterms？ Incoterms______.

A. were drafted by the International Chamber of Commerce
B. provide a set of standardized terms which mean exactly the same to both buyer and seller
C. are incorporated into national or international law
D. can be made binding on both buyer and seller, provided the sales contract specifies that a particular Incoterm will apply

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水泵抽水系统的吸水管路如图所示，d1=250mm，l1=20m，h吸=3m；压水管路d2=200mm，l2=260m，h压=17m；沿程阻力系数λ均为0.03，局部阻力系数ξ进口=3，ξ弯头头=0.2，ξ阀门=0.5，水泵扬程H=23.54m，流量Q=()。

A. 4.75L/s
B. 9.50L/s
C. 40L/s
D. 95L/s

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