作业层脚手板应铺满、铺稳、离开墙面（）。A、60—90mmB、90—120mmC、l

拱桥的主要承重结构是( )。

A．拱圈

B．拱肋

C．腹板

D．承台

E．桥面结构

A teddy bear from Cumbria is launching into space to raise cash for charity(慈善).

Terence, an experienced traveller who has been to Iraq, will be the guest of honour on aviation(航行) legend Burt Rutan’s Spaceship One when it flies above Earth. The mission takes off from California on September 29, and on his return the cuddly toy will be auctioned off(拍卖) in aid of the North Air Ambulance Appeal(北部空中救护服务中心).

Spaceship One is the world’s first private spacecraft, and is competing for a prestigious space travel prize. Chief executive of the Great North Air Ambulance Service (GNAAS), Graham Pickering, said “flying officer” Terence had been handed over to the RAF six months ago and staff had been receiving postcards from him ever since.

He said, “Terence was a fundraising idea that really took off. We have received pictures of him in a U2 craft, trying parachuting and even looking drunk and disorderly. When the RAF finally discharge him he will be a very rare bear indeed—we just hope he does not burn up on re-entry to Earth.”

GNAAS, which needs charitable donations of more than ￡2m a year, has three air ambulances(空中救护机).

Peter Bond, spokesman for the Royal Astronomical Society, said Terence’s safety was not guaranteed. He said, “This is a new and experimental craft and this will only be the second time it has flown. During its first voyage it developed technical problems but hopefully they have now been resolved.”

Since May, Terence has spent time with members of 100 Squadron(空军中队) based at RAF Leeming in Basra, Iraq, and at air shows with performing fighter planes.

Spaceship One will fly 100km (62 miles) above the Earth’s surface, just breaking through the planet’s atmosphere.

If it repeats the feat(技艺) inside two weeks, it will claim the $10m Ansari X-Prize set up to encourage the private space flight business.

小题1:Terence is ________.

A．a real bear living in England

B．an experienced astronaut

C．an air force officer

D．a toy bear小题2:We can infer that________.

A．after this space flight, Spaceship One will get the $10m Ansari X-Prize

B．it is dangerous for a spaceship to re-enter the earth atmosphere

C．Terence will be very safe on the flight

D．Spaceship One is just an ordinary plane小题3:Which of the following is true of Spaceship One?

A．Spaceship One is the world’s first spacecraft.

B．The purpose of its flight is to collect money for the charity.

C．The purpose of its flight is to compete for a prestigious space travel prize.

D．Spaceship One has never flown.小题4:Which of the following is the best title?

A．Teddy bear astronaut to lift off

B．Spaceship One to lift off

C．Space flight

D．The toy bear will be auctioned off

请根据追越条款，下列说法何者正确？（）

A.如后船对本船是否在追越前船有任何怀疑，应假定在追越

B.如前船对本船是否在被后船追越有任何怀疑，应假定在被追越

C.追越形成后，其后两船间的方位变化可能使追越船变为直航船

D.如后船对本船是否在追越前船有任何怀疑，则两船间的方位关系变化可能使追越船变为直航船

冻鱼的检验检疫监管类别是P．R/Q．S，说明该种货物进口时需实施动植物产品检验和食品卫生监督检验。( )

可以作为衡量船舶初稳性大小的基本标志的是（）。

A.复原力矩所作的功

B.静稳性力臂GZ

C.初稳性高度GM

D.形状稳性力臂KN