题目：
The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.
Salespeople at a certain car dealership are paid a $250 commission on every car they sell up to their monthly quota, and $500 for every car they sell over the quota. What is the monthly sales quota at this dealership ？（）
(1) One salesperson exceeded the quota by 8 cars and received a total monthly commission of $7,500.
(2) One salesperson achieved only half of the quota; he received a commission of $1,750 and a warning that he will be fired unless he meets the next month’s quota.
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A解析： 这一题是测试对DELETE语句的理解和熟悉程度。根据本题的要求和INVENTORY表中列的详细定义，可以确定选项A是正确的。 因为Oracle中没有DROP FROM语句，所以选项B肯定是错误的。参阅INVENTO...
