科学与文化的足迹的哪一项主线是最核心的：（）A、科学和技术的发展规律 B、文化进化逻辑

图中四个灯泡的连接方式是

A．四灯串联 　　　　

B．四灯并联

C．L₂、L₃、L₄并联，再与L₁串联

D．L₁、L₂、L₃并联，再与L₄串联

种子萌发所需的外界条件是 

①适量的水分②充足的光照③适宜的温度④丰富的养料⑤充足的空气[ ]

A．①②③

B．①③⑤

C．①②③④

D．①②③④⑤

经张某申请并缴纳了相应费用后，某县土地局和某乡政府将一土地(实为已被征用的土地)批准同意由张某建房。某县土地局和某乡政府还向张某发放了建设用地规划许可证和建设工程许可证。后市规划局认定张某建房违法，责令立即停工。张某不听，继续施工。市规划局申请法院将张某所建房屋拆除，张某要求赔偿。下列哪些说法是正确的( )

A．某县土地局、某乡政府和市规划局为共同赔偿义务机关

B．某县土地局和某乡政府向张某发放规划许可证和建设工程许可证的行为系超越职权的行为

C．市规划局有权撤销张某的规划许可证

D．对张某继续施工造成的损失，国家不承担赔偿责任

Robert Moody, 52, is an experienced police officer. Much of his work involves dealing with (16) and gang (团伙)problems in the schools of his community. Knowing that many kids often (17) trouble, he decided to do something about it. So in 1991 he began to invite small groups of kids to go fishing with him on his day (18) .

Those fun trips had a(n) (19) impact. A chance encounter in 2000 proved that. One day, (20) working security at a school basketball game, Moody noticed two young guys (21) . He sensed trouble between them. (22) one of them headed toward Moody and gave him a hug. "I (23) you. You took me (24) when I was in fifth grade. That was one of the (25) days of my life. "

Deeply touched by the boy’ s word, Moody decided to create a foundation (基金会)that (26) teenagers to the basics of fishing in camping programs. "As a policeman, I saw (27) there was violence, drugs were always behind it. They have a damaging (28) on the kids," says Moody.

By turning kids on to fishing, he (29) to present an alternative way of life, "When you’ re sitting there waiting for a (30) ," he says, "you can’t help but talk to each other, and such (31) can be pretty deep. "

"Talking about drugs helped prepare me for the peer(同龄人)pressures in high school," says Michelle, 17, who (32) the first program. "And I was able to help my little brother (33) drugs. "

Moody faces (34) in three years, when he hopes to run the foundation full-time. "I’ m living a happy life and I have a responsibility to my (35) to give back," Moody says. "If I teach a kid to

fish today, he can teach his brother to fish tomorrow. \

28().

A. impression

B. burden

C. decision

D. impact

在种名后加缩写“CV”的是（）。

A.亚种

B.变种

C.栽培品种

D.属