题目内容
(请给出正确答案)
[单选题]
The spending cuts made it impossible to fill the posts left_______ by retired teacher
A.depressed
B.jealous
C.vacant
D.dissatisfied
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A.depressed
B.jealous
C.vacant
D.dissatisfied
I have seen people spending too much time on the problem and too little time on the(solve) ________.
A.当证券价格从下往上穿越MA曲线时,被称为“死亡交叉”
B.当MA(5)从下往上穿越MA(10)时,是一个买入信号
C.在下跌趋势中,MA曲线具有支撑的作用
D.MA的参数值越小,其追踪趋势的能力越强
在学生表STUD中,查询既不是信息系'IS'、数学系'MA',也不是计算机系'CS'的学生的姓名 (XM)和性别(XB)。SD为系名。实现该功能的正确SQL语句是()。
A.SELECT XM,XB FROM STUD WHERE SD IN ('IS','MA','CS');
B.SELECT XM,XB FROM STUD WHERE SDNOTIN ('IS','MA','CS');
C.SELECT XM,XB FROM STUD WHERE SD NOT ('IS','MA','CS');
D.SELECT XM,XB FROM STUD WHERE SD NOT IN (IS,MA,CS);
A.Philadelphia
B.New York
C.Boston
D.Lexington