[多选题]天气恶劣难以辨认信号时的调车作业,在（ ），并在推进车列的前端配挂简易紧急制动阀。
A.岔线上
B.较长的岔线上
C.上取送车时
D.须接通全部软

Arnold Barker is an analyst at BAYCON Investments. He has been asked to revise BAYCON’s credit analysis process for corporate fixed-income securities. This credit analysis process is the basis for the selection of individual bonds for BAYCON’s fixed-income portfolios. Hank Su, Barker’s supervisor, comments that one limitation of the current credit analysis process at BAYCON is that it only provides an estimate of a bond’s default risk. He asks Barker to expand the credit analysis process to provide an estimate of a bond’s credit spread risk. Su defines credit spread risk as follows: 　　"Credit spread risk is the risk that the issuer will fail to satisfy the terms of the bond with respect to payments.” 　　In addition, Su believes that the current credit analysis process focuses too much on character, collateral, and covenants, and not enough on capacity. In response to Su’s observations, Barker develops a quantitative debt-capacity mode
A. A．Answer

Statuses are marvelous human inventions that enable us to get along with one another and to determine where we "fit" in society. As we go about our everyday lives, we mentally attempt to place people in terms of their statuses. For example, we must judge whether the person in the library is a reader or a librarian, whether the telephone caller is a friend or a salesman, whether the unfamiliar person on our property is a thief or a meter reader, and so on.
The statuses we assume often vary with the people we encounter and change throughout life. Most of us can, at very high speed, assume the statuses that various situations require. Much of social interaction consists of identifying and selecting among appropriate statuses and allowing other people to assume their statuses in relation to us. This means that we fit our actions to those of other people based on a constant mental process of appraisal and interpretation. Although some of us find the task more difficu
A. in order to identify themselves with others
B. in order to better identify others
C. as their mental processes change
D. as the situation changes