A single piece（） fitted with bronze rings guides the piston in the cylinder liner.

A . blind flange B . pivot coupling C . quick-release coupling D . spectacle flange

A . MAC address B . MTU C . IP address D . VLAN connectivity information E . UUID

A . up B . out C . down D . off

A . place for people to lie down B . means for rigging the sail C . place for rowers to brace their feet D . suitable means for water to drain below the footing

A . turning maneuver B . course setting C . position fixing D . regulating speed

A . add B . calladd（2*x，sin（1，57）） C . calladdx，y D . calladd（12，12，x）

A . runs from a low supporting level up to the cargo at an angle B . is also known as a distance piece C . is placed on the deck under the cargo to distribute its weight evenly D . is run horizontally from a support to the cargo

A . breakout wrench B . makeup tongs C . chain tongs D . pipe spinner

（26）设有下列过程： Private Sub ppp(As Single,b As Single) A=a+b Print a,b B=a+b Print a,b End Sub Private Sub Form_Activate() x=18 Call ppp ((x),(x)) Print x End Sub 则下列说法中不正确的是 A.形参是a和b,两个实参（x）和（y）允许重名 B.形参是a和b,实参（x）表示传值调用 C.形参是a和b,实参（x）表示是非传址调用 D.形参是a和b,两个实参（x）和（y）不允许重名

A.with B.to C.for D.in

Like personal computers，most workstations are(72) computers． A．single-user B．single user C．multi-user D．multi user

A) constructive B) destructive C) delicate D) economical

The world art market had already been losing momentum for a while after rising bewilderingly since 2003．At its peak in 2007 it was worth some $ 65 billion, reckons Clare McAndrew, founder of art Economics, a research firm-double the figure five year earlier. Since then it may have come down to $ 50 billion. But the market generates interest far beyond its size because it brings together great wealth, enormous egos, greed, passion and controversy in a way matched by few other industries. In the weeks and months that followed Mr Hirst's sale, spending of any sort became deeply unfashionable. In the art world that meant collectors stayed away from galleries and salerooms. Sales of contemporary art fell by two-thirds, and in the most overheated sector, they were down by nearly 90% in the year to November 2008．Within weeks the world's two biggest auction houses, Sotheby's and Christie's, had to pay out nearly $ 200m in guarantees to clients who had placed works for sale with them. The current downturn in the art market is the worst since the Japanese stopped buying Impressionist at the end of 1989．This time experts reckon that prices are about 40% down on their peak on average, though some have been far more fluctuant. But Edward Dolman, Christie's chief executive, says: "I'm pretty confident we're at the bottom. " What makes this slump different from the last, he says, is that there are still buyers in the market. Almost everyone who was interviewed for this special report said that the biggest problem at the moment is not a lack of demand but a lack of good work to sell. The three Ds--death, debt and divorce-still deliver works of art to the market. But anyone who does not have to sell is keeping away, waiting for confidence to return. In the first paragraph, Damien Hirst's sale was referred to as "a last victory" because______. A．the art marker had witnessed a succession of victories B．the auctioneer finally got the two pieces at the highest bids C．Beautiful inside My Head Forever won over all masterpieces D．it was successfully made just before the world financial crisis

Log cabins were first built in the late 1600s along the Delaware river valley. The European immigrants who settled there brought centuries' old traditions of working with logs. And in this heavily wooded area logs were the material in hand. Log cabins were the most popular in the early 1800s with the settlers who were moving west. They provided the answer to the pioneer's need for a sale and sliding boards for windows. But the log buildings that have probably had most influence on modern architects are those of the mountain retreats of wealthy New Yorkers. These country houses which were popular in the early 1900s typify what's known as the Adoroundyx style. Now let's look at those slides. What is the speaker mainly discussing？ A．Traditional European architecture. B．Techniques for building log cabins. C．The history of log structures. D．How to build a home by yourself.

The world art market had already been losing momentum for a while after rising bewilderingly since 2003. At its peak in 2007 it was worth some $65 billion, reckons Clare McAndrew, founder of Arts Economics , a research firm—double the figure five years earlier. Since then it may have come down to $50 billion. But the market generates interest far beyond its size because it brings together great wealth, enormous egos, greed, passion and controversy in a way matched by few other industries. In the weeks and months that followed Mr Hirst's sale, spending of any sort became deeply unfashionable. In the art world that meant collectors stayed away from galleries and salerooms. Sales of contemporary art fell by two-thirds, and in the most overheated sector, they were down by nearly 90% in the year to November 2008. Within weeks the world's two biggest auction houses, Sotheby's and Christie's, had to pay out nearly $200m in guarantees to clients who had placed works for sale with them. The current downturn in the art market is the worst since the Japanese stopped buying Impressionists at the end of 1989. This time experts reckon that prices are about 40% down on their peak on average, though some have been far more fluctuant. But Edward Dolman, Christie's chief executive, says: " I'm pretty confident we're at the bottom. " What makes this slump different from the last, he says, is that there are still buyers in the market. Almost everyone who was interviewed for this special report said that the biggest problem at the moment is not a lack of demand but a lack of good work to sell. The three Ds—death, debt and divorce—still deliver works of art to the market. But anyone who does not have to sell is keeping away, waiting for confidence to return. In the first paragraph, Damien Hirst's sale was referred to as "a last victory" because_________. A．the art market had witnessed a succession of victories B．the auctioneer finally got the two pieces at the highest bids C．Beautiful Inside My Head Forever won over all masterpieces D．it was successfully made just before the world financial crisis

A．Many international organizations offer help. B．A large amount of money has been received. C．Officers ensure that medicine has been taken. D．Most people remain suspicious about vaccinations.

A．history is an intertwined series of events coming together to form. a larger picture B．a loss of reliability in any single segment of history makes the entire historical record suspect C．once one piece of history is revised, others soon follow D．as soon as the integrity of the historical record is breached, it can never be fully recovered