皮皮学，免费搜题
登录
搜题
【单选题】
用下列方法来制备胶体,能够得到胶体的是 ( ) 。A.
将等体积、等物质的量浓度的 BaCl 2 溶液和硫酸相混合并振荡
B.
把 1 mL 饱和三氯化铁溶液逐滴加入到 20 mL 温水中，边加边振荡，并加热到沸腾
C.
把 1 mL 饱和三氯化铁溶液一次性加入到 20 mL 沸水中，并加以搅拌
D.
把 1 mL 饱和三氯化铁溶液逐滴加入到 20 mL 沸水中，边加边振荡
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
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
【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?
相关题目：
参考解析：
知识点：
题目纠错 0
发布
