题目内容

How Ford Turn Out Cars
When it comes to singling out those who have made a difference in all our lives, you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars—one, strange to say, that originated in slaughterhouses.
Back in the early 1900's, slaughterhouses used what could have been called a "disassembly line. " Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto. Rather than have each worker completely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another component to it, the same one each time. Professor David of the University of Delaware, an expert on industrial development, tells what happened:
"The previous day, workers carrying out the entire process had averaged one assembly every 20 minutes. But on that day, on the line, the assembly team averaged one every 13 minutes and 10 seconds per person. "
Within a year, the time had been reduced to five minutes. In 1913, Ford went all the way. Hooked together by ropes, partially assembled vehicles were towed past workers who completed them on piece at a time. It wasn't long before Ford was turning out several hundred thousand cars a year, a remarkable achievement then. And so efficient and economical was this new system that he cut the price of his cars in half, to $ 260, putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers the world over copied him. In fact, he encouraged them to do so by writing a book about all of his innovations, entitled Today and Tomorrow. The Age of the Automobile has arrived. Today, aided by robots and other forms of automation, everything from toasters to perfumes are made on assembly lines.
Which of the following statements is NOT true?

A. Henry Ford influenced our lives.
B. Henry Ford influenced all manufacturing.
C. Henry Ford influenced the manufacture of ears.
D. Henry Ford influenced historians.

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“把查询sc表和更新sc表的grade列的权限受予用户user1”的正确SQL语句是______。

A. GRANT SELECT, UPDATE(grade)ON TABLE sc TO user1
B. GRANT SELECT sc, UPDATE sc, grade TO user1
C. GRANT SELECT, UPDATE ON TABLE sC.grade TO user1
D. GRANT SELECT ON TABLE sc, UPDATE ON TABLE sc(grade) TO user1

【程序说明】 下列输出乘法口诀的程序,要求输出的格式如下,其中数字之间有3个空格。
* 1 2 3 4 5 6 7 8 9
1 1
2 2 4
3 3 6 9
4 4 8 12 16
5 5 10 15 20 25
6 6 12 18 24 30 36
7 7 14 21 28 35 42 47
8 8 16 24 32 40 48 56 64
9 9 18 27 36 45 54 63 72 81
【程序】
CLEAR
SET TALK OFF
(5)
A=1
DO WHILE A<=9
?? STR(A,4)
A=A+1
ENDDO
A= (6)
DO WHILE A<=9
? STR(A,4)
B=1
DO WHILE B<=A
P= (7)
?? STR(P,4)
B=B+1
ENDDO
A= (8)
ENDDO
SET TALK ON
RETURN
(5)

A. ?“*”
B. ? SPACE(3) +“*”
C. ? SPACE (3)+*
D. SPACE(3) +“*”

【程序说明】 涉及到的库文件SJK.DBF如下:
record# BH(N型) XM(C型) XB(C型) CS(D型) ZF(N型) ZXJ(N型)
1 080102 王五 男 88/06/08 586.00 99.00
2 080201 李四 女 89/08/09 532.00 81.00
3 080202 张三 男 90/05/06 618.00 116.00
4 080101 赵六 女 91/07/08 609.00 103.00
5 080103 孙月 女 89/06/23 589.00 72.00
【程序】
*** 主程序
SET TALK OFF
USE SJK
ZZF=0
SCAN FOR XB=“男” &&
ZZF=ZZF+ZF
ENDSCAN
? ZZF
USE
SET TALK ON
RETURN
程序的运行结果为 ______。

A. 586
B. 532
C. 1204
D. 1720

All whales fall into two groups, those with teeth and those without. Both beluga and dolphin belong to the suborder of toothed whales known as Odontoceti, along with porpoises, narwhals, pilot whales, killer whales and the largest toothed creature in the world, the sperm whale. Size differences among the Odontoceti are remarkable. A common porpoise will run only 4 or 5 feet in length and 300 pounds in weight; a sperm whale may be 10 times as long and 300 times as heavy. The beluga falls in between, weighing up to 2,000 pounds. And it does chirp. In fact, it makes a great variety of squeaking, whistling, and clicking sounds, which have earned it the name of sea canary.
The toothless, or baleen, whales belong to the suborder of Mysticeti. This is a group of generally large whales, formerly abundant in all the oceans of the world. Though reduced by hunting, most species are still found along the coasts of the United Stated and Canada. All but two of the Mysticeti reach 40 feet or more at maturity, with the blue whale running up to 100 feet and tipping the scales at up to 130 tons. This whale is by far the largest creature that has ever lived on earth, 4 times the weight of the largest dinosaur, 30 times that of an elephant.
With what topic is the passage mainly concerned?

A. Breeding habits of whales.
B. Differences between whales.
C. Efforts to preserve whales.
D. The intelligence of whales.

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