题目内容

炉缸的脱硫效果不仅取决于炉渣碱度、温度的高低,而且与炉缸的活跃程度有关。

A. 正确
B. 错误

查看答案
更多问题

上升管喷洒高压氨水的目的是急剧降低煤气温度、体积,从而有利实现无烟装煤。

A. 正确
B. 错误

在麻疹流行季节,从个体和群体的角度出发,你认为()措施可以降低麻疹发生。

A. 适龄儿童及时接种含麻疹成分的疫苗
B. 未接种麻疹疫苗的儿童及时补种
C. 经常开窗通气,流行季节尽量不去人多的地方
D. 做好传染源隔离和密接者接种工作
E. 根据人群免疫现状及疾病发病特点,在麻疹流行或暴发地区有计划的组织开展强化免疫活动

工业上获取丁二烯的主要方法有哪三种?

Consider the Mysql Enterprise Audit plugin. A CSV file called data.csv has 100 rows of data. The stored procedure prepare_db ( ) has 10 auditable statements. You run the following statements in the mydb database: Mysql> CALL prepare_db ( ); Mysql> LOAD DATA INFILE '/tmp/data.cav' INTO TABLE mytable; Mysql> SHOW TABLES; How many events are added to the audit log as a result of the preceding statements?()

A. 12; only top-level statements and stored procedure events are logged
B. 111; top-level statements and all lower-level statements are logged
C. 3; only the top-level statements are logged
D. 102; top-level statements are logged, but LOAD DATA INFILE is logged as a separate event

答案查题题库