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【多选题】
行车基本闭塞法采用（ ）三种。A.
自动闭塞
B.
电话闭塞法
C.
自动站间闭塞
D.
半自动闭塞
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反馈参考答案：
举一反三
【单选题】Total variable costs:
A.
Increase when quantity produced increases.
B.
Decrease when quantity produced increases.
C.
Sometime increase and sometime decrease when quantity produced increases.
D.
Can sometimes be constant over a substantial range of output.
【单选题】Which of the following are variable costs?( )
A.
Interest on borrowed funds
B.
Depreciation for fixed assets
C.
Salary of the chief accountant who cannot be dismissed during the suspension period
D.
Salary of workers who can be dismissed at any time
【单选题】The county government released $100,000 as an appropriation for a counseling program for at-risk teenagers. The program should run one year and the variable costs for the program are $400 per teenager...
A.
50
B.
100
C.
150
D.
250
【单选题】Citrus Industries has three product lines, A, B, and C. The following information is available: A B C Sales $60,000 $90,000 $24,000 Variable costs 36,000 48,000 20,000 Contrib...
A.
a. increase $3,600
B.
b. decrease $3,600
C.
c. decrease $6,000
D.
d. increase $6,000
【简答题】正面斜二测图的轴间角为 A.1个90°,2个120° B.1个90°,2个135° C.3个均为120° D.3个均为135°
【简答题】A business makes three different products, as follows: A B C Sales £ 25 £ 30 £ 20 Variable costs £ 20 £ 24 £ 14 Unit labor hours 2 2 3 Machine hours 4 3 4 • Fixed costs for next year are expected to t...
【单选题】If a firm at equilibrium in a perfectly competitive industry can cover its variable costs but not its fixed costs, it will:
A.
shut down immediately.
B.
make negative profits as it considers closing its doors in the long run.
C.
increase production until it covers fixed costs.
D.
make positive profits until more firms enter the market.
【简答题】这首诗表达了怎样的感情?
【单选题】下列叙述中,哪一条是中共二大制定的“党的最高纲领”?( )
A.
“以无产阶级革命军队推翻资产阶级”
B.
“组织无产阶级，用阶级斗争的手段，建立劳农专政的政治，铲除私有财产制度，渐次达到一个共产主义社会
C.
“采用无产阶级专政，以达到阶级斗争的目的——消灭阶级”
D.
“废除资本家私有制”以及联合第三国际
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