When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.
Host 1 has just started up and requests a web page from web server 2. Which two statements describe steps in the process Host 1 uses to send the request to web server 2 (choose two)（）。
After a fire has been extinguished in a closed space, personnel may safely enter the space when （）.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.
You are using RMAN to perform a closed database backup of your database. You issue these RMAN commands： STARTUP MOUNT； BACKUP FORMAT ’/BACKUP/df_%d_%s_%p.bus’ DATABASE filesperset = 2； Which components are included in the backup？（）
The Captain of the Port has closed to navigation，and buoyed，a section of a harbor. These buoys would be painted（）.
In the sentence “two problems could neutralize its potential benefits”, which of the following does NOT have the close meaning with the word “neutralize”?
The group of the words “this, those, that” has the sound [ð].
Which one has the same meaning as the word bedrock price?
Which group of words has the sound [ɛ]?
It has no way to know if the person has read the message word for word.
2.Which word has the closest meaning to the word “assess”?
Which group of the words has the same vowel sound?
31. The grocery store has been closed down since no one wanted to ________the business.
House A has three separate rooms that are used as sleeping areas. Each bedroom has its own door that can be closed and lockeD. The parents have the main bedroom, the daughter has the second bedroom, and the son has the thirD.
In the context of the reading, what does the word reserving most closely mean?
Thousands of workers in the small town are______since the car factory has closed down.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward．This is the signal to ______．
The word "unhappiness" has______morphemes.
The English language has a close affinity (很相似) [ ] French
The office has been closed for the last ________ days.
Close Read the following passage carefully and choose the best word or phrase to fill in each blank.
What is the situation called when there is only one firm, the sole producer of a good, which has no closely competing substitutes？
Diphthongs has two different kinds, one is centering diphtongs, the other is closing diphthongs.
