You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback？（）
In English， long vowels are also tense vowels because when we pronounce a long vowel such as/i：/，the larynx is in a state of tension.
The OPTIMIZER_USE_PLAN_BASELINES parameter is set to TRUE. The optimizer generates a plan for a SQL statement but does not find a matching plan in the SQL plan baseline. Which two operations are performed by the optimizer in this scenario?（）
You work as a database administrator for Certkiller .com. You find that users with DBA role are using more CPU resources than what is allocated in their profiles. Which action would you take to ensure that resources limits are imposed on these users？ （）
You find this query being used in your Oracle 12c database: Which method a used by the optimizer to limit the rows being returned?（）
You work as a database administrator for Supportcenter.cn. You find that users with DBA role are using more CPU resources than what is allocated in their profiles. Which action would you take to ensure that resources limits are imposed on these users？（）
3:04 is four past three in British English, an in American English it is said as four ________ three
The form of past perfect tense should use “have” adding past participle. The first usage of the past perfect tense expresses the idea that something occurred before another action in the past.
The past is deep by the B. Wordsworth in Naipaul’s story is translated quite beautifully into Chinese.
Find out the incorrect parts and put the corresponding letter after the statement.In the past 3 years, great changes have been taken place in my hometown. For example, loads of buildings have been torn away and rebuilt.
Generally speaking, in an abstract, the opening and concluding statements are written in the present tense or the present perfect tense, while the methods and results are expressed in the past tense.
Past perfect continuous tense is used to indicate an action that happened continuously in the past before something else occurred. (T/F)
Generally, the past tense is used to narrate experiments and explain procedures.
Use the verbs in brackets in the correct future tenses – will-future , going to-future , Simple Present or Present Progressive . 1. The train at 11:45. (to leave)
What is said about the blocks of flats built in the past in Britain ?
Among the following four past tense marker {-ed},________ is realized by /t/.
In a scientific manuscript, which of the following verb tenses is the most appropriate for describing the implications of data?
Discounting the future is the procedure used to find the future value of a dollar received today.
Write down the following time in English using past / to (the British way): 8:12, 16:43
One usage of the past perfect tense shows that something started in the past and continued up until another action in the past.
in the past, at the moment it is a favourite choice for the wedding gown（）
Find the lowest mortgage______ available in your area by using our free search tool.
Early in the 16th century men were trying to reach Asia by traveling west from Europe. In order to find Asia they had to find a way past South America. The man who eventually found the way from the Atlantic Ocean to the Pacific was Ferdinand Magellan.
In the past, people used______that the moon was too far away ______But now it is possible for man______there by spaceship.
