属专性需氧菌的是?() ["肺炎链球菌","结核分枝杆菌","破伤风梭菌","金黄色葡萄球菌伤寒沙门菌","大肠埃希菌"]
删除操作产生的临时工作表叫什么?它存放的是什么数据?
两个浮点数X0和X1比较相等时,应该用()比较。 ["X0==X1","X1-X0<ε","∣X0-X1∣<ε","X0=X1"]
电学计量中常用的检定方法有整体检定法、()检定法和半整体检定法 ["元件","导体","电路","测量"]
假定有“struct BOOK{char title[40]; float price;}; struct BOOK book;”,则不正确的语句为()。 ["struct BOOK *x=malloc(book);","struct BOOK x={"C++ Programming",27.0};","struct BOOK *x=malloc(sizeof(struct BOOK));","struct BOOK *x=&book;"]
土壤粘结性