【简答题】豆科植物有哪些主要特征?豆科植物分为几个亚科?各亚科的花冠有何特点?
【单选题】The spokesman did not give out the details of the message, saying, “it should not be made public as it is a ______ issue”.
【单选题】If it for his invitation the other day, I should not be here now. A. had not been B. should not be C.were not to be D.should not have been
【单选题】There are many types of reports. A report is simply 【B1】 of something that has happened. The commonest are 【B2】 We get them in newspapers, over radio and 【B3】 television. Sometimes 【B4】 also show us n...
【判断题】可能由于两个或更多的人员进行串通或管理层凌驾于内部控制之上而使内部控制失效。