[判断题]南宁3号线动车和拖车转向架轮对的每个轴端均配有一套轴箱装置。( ）
A.正确
B.错误

Airport baggage screeners in the USA, displaying seized chain saws, machetes and knives, (21) travelers to check their luggage for offensive objects before boarding a (22)
Officials of the Transport Security Administration (TSA) (23) that since February 2002 more than 7.5 million (24) items had been seized. They included 50,000 box cutters--a (25) said to be used by the Sept. 11, 2001 hijackers --and 1,437 firearms as (26) as 2.3 million knives.
The TSA officials told a news conference most people with (27) items in their bags intended no malice but advised (28) to consult the website www.tsatraveltips.usa for advice on what to leave behind when (29) a trip.
Since the Sept. 11 attacks screeners have confiscated seemingly (30) items like nail clippers and cigarette lighters (31) passengers.
But some carry more obviously (32) items. Chain saws,
A. prohibited 
B. expensive 
C. valuable 
D. allowed

Sulphur is one of the oldest, cheapest, and most useful minerals in the world. Yellowish or greenish in (1) , this odorless material is found in the earth in a crystal form. We have discovered thousands of (2) for it. For this reason, every man, woman, and child in America (3) about seventy-five pounds of it each year.
Until 1900 almost all of the world’s supply of sulphur came from the Italian (4) of Sicily. Since then America has discovered how to mine its own vast supplies found in Texas and Louisiana. Spain, Mexico, and South America are also (5) for it. (6) , we know there are trillions of tons of sulphur in our oceans.
In Sicily sulphur was found near the earth’s surface, but American miners had to learn (7) to extract sulphur from 1200 to 1500 feet underground. There were many years of experiments. Then they finally found the (8) . Several pipes were drilled down to the sulphur
A. include
B. exclude
C. confuse
D. disappear