[单项选择]I hope all the precautions against air pollution, （） suggested by the local government, will be seriously considered here.
A. while
B. since
C. after
D. as

[单项选择]I hope all the precautions against air pollution, ______ suggested by the local government, will be seriously considered here.
A. while
B. since
C. after
D. as

[简答题]for 110% of / to be covered / against All Risks / insurance is / by the seller / the invoice value

[单项选择]The atmosphere is all the air surrounding the earth. Without it, we would be forced to seek shelter from the sun, as there would be no atmosphere to protect us from the sun’s deadly rays.
Large and powerful, the atmosphere consists of an ocean of gases hundreds of miles high. It presses down on our bodies with a force of more than fourteen pounds per square inch. The narrow column of air which rests upon our shoulders weighs almost 2000 pounds. But our bodies are built in such a way that this weight does not crush(压碎)us.
In this huge ocean of air there is more energy than in all the coal, oil, and gas we have on earth. Electrical energy is collected in the atmosphere as water is collected and stored in a dam. The existence of electricity in the air has been known for centuries. But a thorough study of electricity in the atmosphere was not possible until the development of radio and radar.
One scientist, Dr. Sydney Chapman, has tried to explain the electric field wh
A. the total amount of oxygen over the earth
B. mixture of gases surrounding the earth
C. a source of storms
D. the diffusion of waste gas

[单项选择]A Young adult filmmakers all hope to show their works in international festivals like Sundance and Toronto. But what about really young filmmakers who aren’t in film school yet and aren’t, strictly speaking, even adults They are at the heart of Wingspan Arts Kids Films Festival, tomorrow, in a setting any director might envy: Lincoln Center. Complete with "red carpet" interviews and various awards, the festival has much in common with events for more experienced moviemakers, except for the age of the participants: about 8 to 18. "What’s really exciting is that it’s film for kids by kids," said Cori Gardner, managing director of Wingspan Arts, a nonprofit organization offering youth arts programs in the New York area. This year the festival will include films not only from Wingspan but also from other city organizations and one from a middle school in Arlington, Virginia. "We want to make this a national event," Ms. Gardner added. The nine s
A. is organized by a middle school
B. is as famous as the Toronto Festival
C. shows films made by children
D. offers awards to film school students

[单项选择]Young adult filmmakers all hope to show their works in international festivals like Sundance and Toronto. But what about really young filmmakers who aren’t in film school yet and aren’t, strictly speaking, even adults They are at the heart of Wingspan Arts Kids Films Festival, tomorrow, in a setting any director might envy; Lincoln Center. Complete with "red carpet" interviews and various awards, the festival has much in common with events for more experienced moviemakers, except for the age of the participants; about 8 to 18. " What’s really exciting is that it’s film for kids by kids, " said Cori Gardner, managing director of Wingspan Arts, a nonprofit organization offering youth arts programs in the New York area. This year the festival will include films not only from Wingspan but also from other city organizations and one from a middle school in Arlington, Virginia. " We want to make this a national event, " Ms. Gardner added. The nine shorts to be shown range
A. It helps young filmmakers to make money.
B. It provides arts projects for young people.
C. It’s a media arts and leadership-training group.
D. It’s a national organization for young people.