This plant ____ electricity for the entire city.

A.A plant can be assigned directly to one controlling area

B.A plant can be assigned to a reference purchasing organization

C.A plant can be assigned to exactly one company code

D.A plant can be assigned to several company codes

A.all

B.in together

C.altogether

D.gather

Although they plant trees in this area every year, the tops of some hills are still _______.

A) blank B) hollow C) vacant D) bare

A.Purchasing

B.Accounting

C.Basic Data

D.General Plant Data/Storage

B.Transfer postings from unrestricted-use stock to quality inspection stock

C.Transfer postings between two storage locations of one plant based on a two-step procedure

D.Transfer postings between plants that have the same company code

【题目描述】

5．If you plant watermelon seeds in the spring, youfresh watermelon in the fall.

A．eat

B．would eat

C．have eaten

D．will be eating

答案分析：

解析：本题考查条件句的时态。根据句意：如果你在春天种下西瓜种子，你会在秋天吃到新鲜的西瓜。可以判断这是真实的条件从句，会发生的事情，所以选择will be eating表将来。

【我的疑问】（如下，请求专家帮助解答）

为什么不是虚拟的，真实的条件从句和虚拟语句有什么不同么

(1)计算该生产函数下劳动的平均产量和边际产量;

(2)该生产函数是否显示了劳动的边际报酬递减，请解释;

(3)请直观地解释劳动边际产量为负的原因？

Suppose a chair manufacturer is producing in the short run (with its existing plant and equipment). The manufacturer has observed the fallowing levels of production corresponding to different numbers of workers:

a. Calculable the marginal and average product of labor for this production function.

b. Does this production function exhibit diminishing returns to labor？ Explain.

e. Explain intuitively what might cause the marginal product of labor to become negative,