三级安全教育是指()这三级。
A.企业法定代表人、项目负责人、班组长
B.公司、项目、班组
C.公司、承包单位、分包单位
D.建设单位、施工单位、监理单位
参考答案:B
Whichofthefollowingstatementsabout"shortselling"isTRUE()
A. A short position may be hedged by purchasing put options.
B. Short sellers may be subject to margin calls if the stock price increases.
C. Stocks that pay large dividends should be sold short before the ex-dividend date and bought afterward to take advantage of the large price decline in a short time period.
外壁