A：生态旅游有自然和人文旅游形式
B：以人文、生态环境作为主要旅游场所
C：不破坏自然资源和生态环境
D：生态旅游不会取得好的经济效益
①“东台”地名的原先含义，便是东部那一片地势又平又高的地方
②东台西部成陆较早，在新石器时代，长江和淮河东流入海所挟带的泥沙沉积不断向海延伸
③东台地名的出现与该地的地貌形成和特征有关
④东部则由于季风的影响和海潮的壅塞，堆起了由南向北的沙岗
⑤唐代大历年间修筑的常丰堰和宋代范仲淹兴修的捍海堰，均在这条东冈堤上
⑥大约在距今3000年时，又形成了一条东冈沙堤，约在2000年前露出海面
关于声学的下列说法中，错误的是
下列关于生物圈保护的叙述，正确的是（ ）
(A)
School Programs
Hillbrook School
Music Program is offered all year round to students of grades 1—5．You can choose drum lessons or piano lessons．
Enjoy our beautiful school with grades and playgrounds．
TEL：650—968—5957
www．Hillbrook．com
Emerson School
Sports Program for students of grades 1-3 starts in January!
Woodshop Program starts on January 15th
Students of grades 4—6 are welcome．
TEL：650—903—0986
www．emerson．com
Monarch School
Group classes in art are offered every day from February．Nice and patient teachers are waiting for you．
Monday shows．
Art Program for beginners only．
TEL：650—720—1677
www．monarch．com
Almaden School
Every child can be different and special．
Our Development Program helps students of gradesl-6 improve thinking skills，through math and science．
Life skills, cultural activities and fun game·
TEL：650—403—3575
www．Almaden．com
