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A sample of D-ribose(C₅H₁₀O₅) with mass 0. 727 g was weighed into a calor

A sample of D-ribose（C₅H₁₀O₅) with mass 0. 727 g was weighed into a calor

A sample of D-ribose(C₅H₁₀O₅) with mass 0. 727 g was weighed into a calorimeter and then ignited in presence of excess oxygen. The temperature rose by 0.910 K when the sample was combusted. In another separated experiment in the same calorimeter the combustion of 0. 825 g of benzoic acid,for which the Δ_cU^Θ_m= 3251 kJ·mol^-1,gave a temperature rise of 1.940 K. Calculate the Δ_rU^Θ_mand Δ_rH^Θ_mof D-ribose combusted.

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第1题

凭样成交的出口商品的品质条款应力争（）

A.Quality as per seller‘s sample

B.Quality as per buyer’s sample

C.Quality as per sample

D.Quality as sample

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第2题

It ______ 12 rabbits to test a sample of vaccine, now it takes only 6.A．used to takingB．us

It ______ 12 rabbits to test a sample of vaccine, now it takes only 6.

A．used to taking

B．used to take

C．is used to take

D．was used to taking

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第3题

Standard "Shewhart" control charts assume that the distribution of sample means is:A.unifo

Standard "Shewhart" control charts assume that the distribution of sample means is:

A . uniform

B . normal

C . discrete

D . symmetrical

E . B and D only

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第4题

Which of the following is a substantive audit procedure for wages and salaries？A.Inspect a

Which of the following is a substantive audit procedure for wages and salaries？

A.Inspect a sample of clock cards for evidence of authorisation by a responsible official

B.Recalculate a sample of payroll deductions such as employment taxes to confirm accuracy

C.Attempt to access and make changes to the payroll master file using the log on for a junior clerk

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第5题

OriginalToolinG、Sample（工装样件/首批样件）缩写是（OTS）。（）

此题为判断题(对，错)。

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第6题

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A.OLDCART

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第7题

Which of the following is NOT an audit software technique？A.Using computer programs to ext

Which of the following is NOT an audit software technique？

A.Using computer programs to extract a sample for a receivables circularisation

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C.Using a computer to perform an analytical review comparison of administration expenses against the prior year

D.Entering a sample of dummy sales orders through the computer system which takes customers over their credit limit to ensure the system rejects the orders

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第8题

You want to post a goods issue from blocked stock.In which of the following cases is this possible？ Please choose the correct answer.（)

A.Withdrawal for a stock transport order

B.Withdrawal for an inspection sample

C.Withdrawal for a cost centre

D.Withdrawal for an order

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第9题

A quality control manager decides to increase his daily sample size from three to six. The

size of the control band will:

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第10题

A process characteristic has a true mean of 150 and a true standard deviation of 20. A sam

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C . 4

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