习图8.3.1所示为陇东一陕北地区的一自重湿陷性黄土场地上的一代表性探井土样的湿陷性

3²﹣2³的值是（    ）。

Some disabled people use a special card when they park their cars. These are called disabled placards, which are removable signs that can be hung from the rear-view(后视) mirror of a car. These placards are only supposed to be for disabled people.

These placards are meant to help disabled people in a number of ways. They allow the person to park in special parking spaces. They can also be used when disabled people are being dropped off or picked up. Disabled people can even use them to park without having to pay.

Parking officials think that some people are cheating. Not all people who have these placards are disabled. Today, one in sixteen drivers in California carries the sign. There are a lot more people who have disabled placards today than ten years ago. An official from the DMV(加州车辆管理局) says that there are many reasons for the increase. As people get older, they may develop health problems and need to have one. There are also other reasons why more drivers have them today. Finally, there are a number of people who have them that should not.

Last year the DMV cancelled more than 25,000 permits. They found that lots of people who had the disabled placards had died. These permits are no longer valid.

Some people are worried that the system is being abused. They are worried that access to the program could be limited because of the misuse. More rules could make it harder for people with real disabilities to get these placards.

小题1:What do we know about placards?

A．They are all used by disabled people.

B．They are cards designed by disabled people.

C．They can help disabled people park their cars.

D．They allow disabled people to drive anywhere.小题2:The DMV canceled many permits because_________.

A．the number of old people is growing

B．the number of disabled people is on the rise

C．they want to make it harder for people to get them

D．some people who have the placards have died小题3:What can people do with the placards?

A．Drivers can use them when picking up disabled people

B．Disabled people can pay for parking with them.

C．Drivers can use them to drive their cars.

D．People can have access to DMV with them.小题4: What does the third paragraph mainly talk about?

A．The reasons why disabled placards are also popular among drivers.

B．Some healthy people also use the disabled placards.

C．The number of disabled placard users had increased.

D．More reasons for drivers to use disabled placards.小题5:We learn from the passage that_________.

A．disabled placards will be stopped by the government

B．some people will be punished for breaking the law

C．some disabled people will be forbidden to use disabled placards

D．some rules will be made related to disabled placards

Turkey’s Bodrum peninsula is different. The tourist boom in this part of the world (1) turned some small villages into resorts yet left neighbouring beaches undisturbed, making it quite (2) southern France or the Spanish Coasts where few stretches of coastline are undevelopeD．
The (3) for this happy set of circumstances is simple. For thousands of years, travel here (4) easier by boat than by lanD．So when mass tourism arrived in the (5) 1980s, there was no coast road for ribbon development to follow. So the peninsula, just (6) hour from Bodrum airport, has not become one long littoral of resort.
The building (7) new hotels has mainly been confined to places easily reached by then relatively (8) roads. Such ease of access has made Gumbet, near Bodrum, a busy resort, while the little fishing village of Gumusluk, 12 miles further west and only recently reachable by (9) , remains tranquil and undisturbeD．
It’s worth thinking carefully about location when planning a family (10) on the peninsulA．Choose a place that is centrally located, preferably out of earshot (11) Bodrum town’s "lively"—which means nosy—nightlife, and you can then use (12) area’s comfortably small scale to your advantage. Today’s new roads mean most places can (13) reached in under an hour by taxi or the ubiquitous dolmus-minibus.
The (14) of facilities at the Tamarisk Beach Hotel near the small village of Ortakent makes (15) a good base. The family-run hotel—rooms and suites are in two-storey buildings (16) by palm trees and flowers in terracotta pots—sits above its own sandy (17) beach, shaded by tamarisk trees and sheltered by nearby islands.
The hotel is (18) child-friendly, too. Children, from infants up to young teenagers, can take part in a (19) of games and activities that include tuition in windsurfing, dinghy (20) catamaran sailing.

Why does the groundwater from the north finds its way into the canyon, but the water from the south doesn’t

A．Because there are fractures in the rocks in the south.

B．Because the southwest part of the underlying rock beds are a bit lower than those in the opposite direction.

C．Because the pressure of the upper streams forces the water to flow in from the north and flow away from the south.

D．The reason is not mentioned in the passage.

额窦炎经下壁扩散可形成（）。

A.骨膜下脓肿

B.硬脑膜外脓肿

C.眼眶骨膜下脓肿

D.额骨骨髓炎

E.海绵窦血栓性静脉炎

A．条件(1)充分，但条件(2)不充分．
B．条件(2)充分，但条件(1)不充分．
C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D．条件(1)充分，条件(2)也充分．
E．条件(1)和(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

x²-2x-a²=0的一个根是另一个根的平方．
(1)a=2； (2)两根之差的绝对值是6．