题目内容

Which of the following is incorrect about the characteristics of HIV()

A. Retrovirus
B. Single-stranded DNA virus
C. Lentivirus
D. Include HIV-1 and HIV-2
E. Consists of envelope and core

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74LS160的计数条件是()

A. ET=0
B. EP=0
C. B.ET=0
D. EP=1
E. C.ET=1
F. EP=0
G. D.ET=1
H. EP=1

Which
of the following methods provides the most accurate results in cost estimation()Which
of the following methods provides the most accurate results in cost estimation()

A. Least-squares regression method
B. High-low method
C. Scatter-graph method
D. Account Analysis method

Which of the following belong to discretionary fixed costs? There may be more than one correct answer()

A. Insurance costs
B. Advertising
C. Depreciation on buildings and equipment
D. Research and development costs

‍Which of the following costs would be variable
with respect to the number of cones sold at a Baskins & Robbins shop?
(There may be more than one correct answer.)()‍Which of the following costs would be variable
with respect to the number of cones sold at a Baskins & Robbins shop?
(There may be more than one correct answer.)()

A. The cost of lighting the store
B. The wages of the store manager
C. The cost of ice cream
D. The cost of napkins for customers

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