按全国物业管理示范住宅小区标准，申请评比的住宅小区，必须由一家物业服务企业实施统一的

并联电容器后，使供电线路中总电流及其与电压的相位差减小，提高整个电路的功率因数，而感性负载本身的电流、功率和功率因数cosφ₁均（）。

A．增加

B．减小

C．改变

D．未改变

Has been a dream for 30 years but now the world’s first flying car is set to hit the roads this year.

Ever since the “Back to the Future” movies lit up our screens in the 1980s, designers have dreamt of cars that could take to the sky at the push of a button(按钮). And now pilots can order their own “roadable” plane for just￡127, 000.

The plane, which has fold-out wings that span 17. 5 feet, can be up to 115 mph. Back on the land, it can also travel at “highway speeds” in car mode(模式).

Fuelling(加燃料)the 19 feet long plane couldn’t be simpler—you just drive it into a petrol station and fill it up.

A spokeswoman said, “You can keep your ‘light-sport airplane’ in your garage. But because it needs a short runway to take to the air, you will have to drive to your local airport, fly up to 460 miles, land and drive directly to your destination(目的地). You will always be ready to drive or fly. ”

The spokeswoman added, “Never let bad weather change your trip. You can simply divert(使转向)and continue on the ground until the weather clears. ”

There’s no risk to you—this is only the chance for you to be the first at your home field to unfold(展开)your wings and fly into the future.

小题1:According to the text, the “roadable” plane　　　.

A．can fly in the sky at “highway speeds” in car mode

B．is a kind of car with fold-out wings

C．is a little difficult to fuel　

D．can only travel on the highway小题2:We can infer that in the “Back to the Future” movies　　　.

A．there are some skillful pilots

B．pilots have no cars to drive

C．pilots can’t afford a “roadable” plane

D．cars can fly in the sky小题3:What does the underlined word “it” in the 5th paragraph refer to?

A．Light-sport airplane.

B．Your garage.

C．The local airport.

D．A petrol station.小题4:The last sentence of the text aims to　　　.

A．call for people to buy the “roadable” plane

B．show people the use of the “roadable” plane

C．tell people only the “roadable” plane can fly in the future

D．ask people to unfold their wings and fly into the future小题5:If you meet with a thunderstorm in your “roadable” plane in the skies, you can　　　.

A．land in a nearby airport until it clears

B．turn back home until it clears

C．land and drive on the ground

D．fly high up to 460 miles

论述钢琴木材的声学性质。

前人称为"疮家圣药"的药物是（）

A.秦艽

B.大血藤

C.鸡血藤

D.连翘

E.大青叶

不属于空调预留孔、预埋管设置中孔洞、套管遗漏质量问题的防治措施是（）

A.复核暖通图与结构留洞图

B.分清土建、安装的施工划分

C.隐检时逐一清点

D.加强隐检时的尺寸复核