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问题 单项选择题

肉豆蔻煨制方法有麦麸煨、面裹煨、滑石粉煨，毒性顺序是

A.生品＞麦麸煨＞滑石粉煨＞面煨

B.生品＞滑石粉煨＞麦麸煨＞面煨

C.生品＞麦麸煨＞面煨＞滑石粉煨

D.生品＞面煨＞麦麸煨＞滑石粉煨

答案

参考答案：B

写句子

扩写句子。  

1．小鸟飞上了天空。  

                                                                                                                       

2．我们唱歌。

                                                                                                                         

3．姐姐是老师。

                                                                                                                         

4．我买文具盒。

                                                                                                                        

5．妈妈看报纸。

                                                                                                                      

6．哥哥是学生。 

                                                                                                                     

7．操场干净。

                                                                                                                      

8．红旗飘扬。

                                                                                                                      

9．小鸟叫。 

                                                                                                                         

10．王老师走进来。

                                                                                                                     
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单项选择题

已知关系模式：SC(sno,sname,grade)，各属性含义依次为学号、课程名、分数。要查找“数据库”课分数最高的学生的学号，正确的SQL语句是( )。

A．SELECT sno FROM sc WHERE sname="数据库"AND grade=MAX(grad

B．SELECT sno FROM sc FOR sname="数据库"OR grade＞=MAX(grad

C．SELECT sno FROM sc WHERE sname="数据库"AND grade=(SELECT MAX(gradFROM s

D．SELECT sno FROM sc FOR sname="数据库"OR grade=(SELECT MAX(gradFROM s
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