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【单选题】
采用土钉墙进行基坑支护时,下述不正确的是()A.
土钉墙墙面坡度不宜大于 1 ： 0.1
B.
土钉长度不应小于 8m ，间距宜为 1-2m ；倾角宜为 15 度 -35 度。
C.
采用多层土钉时，上层土钉注浆体及喷射砼面层达到设计强度的 70% 后，方可开挖下层土方及进行下层土钉施工。
D.
采用抗拉试验检测土钉承载力时，同一条件下，试验数量不宜少于土钉总数的 1% ，且不应少于 3 根。
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皮皮学刷刷变学霸
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
【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】软币是指在外汇市场上汇率呈____的货币。
【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?
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