You need to describe the various types of flow control to your co-workers. Which of the fo

You don't need to describe her. I ______ her several times．

A．had met B．have met C．met D．meet

A.had met

B. have met

C. met

D. meet

Which one is used to describe the fifth characteristic？ (You get into hot water)

A.Entrepreneurs need to be comfortable with the process of evaluating their own performance.

B.Entrepreneurs are never satisfied with status quo.

C.It’s important to surround yourself with people smarter than you, and to listen to ideas that aren’t yours.

D.Entrepreneurs fail down and pick themselves up until they get it right.

res as unit, mass, or process？ Explain your choice. (Hint: You may need to review his material found in Chapter 10.) How does is production/operations technology approach affect the way products are produced？

, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was created.) How do you obtain the definition of the view？（）

A.Use the DESCRIBE command on the EMP_DEPT_VU view.

B.Use the DEFINE VIEW command on the EMP_DEPT_VU view.

C.Use the DESCRIBE VIEW command on the EMP_DEPT_VU view.

D.Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.

E.Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.

F.Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.

disappears and recuperation begins. The tired mind gathers new energy, and the memory improves.

Some adults require little sleep; others need eight to ten hours in every twenty-four hours. Infants sleep sixteen to eighteen hours daily, the amount gradually diminishing as they grow older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under pressure may manage on six to eight. Many famous people have little sleep. Napoleon Bonaparte, Thomas Edison and Charles Darwin apparently averaged only four to six hours a night.

Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total more than twelve years. By the age you will also have developed a sleep routine: a favorite hour, a favorite position, and a rule you need to follow in order to rest comfortably.

Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours nearly five days. Whatever the limit, it is absolute. Animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.

(1).By writing this passage, the writer intends to tell us that _______.

A、sleep is important for good mental and physical health

B、a light sleep is as restful as a deep sleep

C、memory is improved during sleep

D、sleep is relatively unimportant for human beings

(2).The amount of the sleep required may ___.

A、tire an individual mind

B、help infants grow older

C、apply pressure on an executive

D、that they didn’t sleep long

(3).If a person is not allowed to follow his own sleep routine, he will probably _____.

A、never fall sleep

B、not sleep well

C、lost his memory

D、begin to daydream

(4).The author implies that if human beings are kept awake for more than a week the result _____.

A、is hard to imagine

B、will probably be a mental breakdown

C、is difficult to describe

D、will probably be dead

(5).From the amount of sleep Napoleon, Edison, Darwin required, we can conclude ___.

A、 that they were famous

B、 that they were executives

C、 hat they were intelligent

D、 that they didn’t sleep long

think of them as mainly hand and arm movements, gestures can be ___1___ by other parts of the body as well.Emblems are one type of movements.Emblems do not need speech to communicate ___2___.Putting the tip of an index finger on the tip of a thumb up with the remaining fingers pointing up and ___3___ out is an example of an emblem.This recognized sign for "OK" or "success" does not need any ___4___ word to identify it.Emblems not only serve the ___5___ role in nonverbal communication but they also have direct translation.For example, a thumb-up sign means "yes" or "go".A cupped hand behind the ear means "I can"t hear you".We don’t walk around with our thumbs up or a hand cupped behind our ear ___6___ we are sending a nonverbal message to someone.These messages are ___7___ sent and we must take responsibility for them.Nonverbal messages that have direct translation and exact meaning, which are ___8___ at a specific receiver, and consciously sent, are emblems.Emblems are also different across cultures.In the United States, ___9___ your index finger at your temple with the thumb upright means "shooting yourself in the head".In Japan, an emblem describing ___10___ is pushing a closed fist near your stomach to describe the plunge of a knife in your vital organs.

A.pointing

B.indicating

C.substituting

D.accompanying

E.spreading

F.extending

G.meaning

H.suicide

I.until

J.unless

K.communicated

L.informed

M.directed

N.consciously

O.intentionally

Why does the author mention the California gold rush？

A．To explain the need for an increased supply of gold.

B．To indicate the extent.of United States mineral wealth.

C．To describe the mood when oil was first discovered.

D．To argue that gold was more valuable than oil.