You want to display the titles of books that meet these criteria: 1. Purchased before January 21, 2001 2. Price is less then $500 or greater than $900 You want to sort the results by their data of purchase, starting with the most recently bought book. Which statement should you use? （） SELECT book_title FROM books WHERE price between 500 and 900 AND purchase_date < '21-JAN-2001' ORDER BY purchase_date;。 SELECT book_title FROM books WHERE price IN (500,900) AND purchase_date < '21-JAN-2001' ORDER BY purchase date ASC;。 SELECT book_title FROM books WHERE price < 500 or > 900 AND purchase_date < '21-JAN-2001' ORDER BY purchase date DESC;。 SELECT book_title FROM books WHERE (price < 500 OR price > 900) AND purchase_date < '21-JAN-2001' ORDER BY purchase date DESC。
气瓶附件包括（）等。 瓶帽；。 液位计；。 防静电装置；。 紧急切断装置。
After the /etc/tunables/nextboot file has been edited， which command can be used to validate changes to the IO performance tuning settings？（） ioo -v nextboot。 ioo -c nextboot。 valcheck -f nextboot。 tuncheck -r -f nextboot。
What can you determine about the following linguistic sorts based only on their names?（） 1. GERMAN 2. FRENCH_M multilingual 1 is a monolingual sort.。 2 is a monolingual sort.。 1 is case insensitive.。 Both 1 and 2 are case insensitive.。 Case sensitivity is unknown.。
如何评估教师教的有效性。
How many AMD processors can be installed inside a x3755？ （）
