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【判断题】
黄土高原地表干沟万壑，支离破碎是由于风力侵蚀作用造成的。（）
A.
正确
B.
错误
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】暴雨时短暂时间内,在地表沟谷中汇聚的暂时性水流,将沟谷中物质侵蚀,搬运,并沉积在沟谷口的过程叫做 ( ) 。 A. B. C. D.
A.
洗刷作用
B.
冲刷作用
C.
淋滤作用
D.
河流地质作用
【单选题】Throughout the nation’s more than 15,000 school districts, widely differing approaches to teaching science and math have emerged. Though there can be strength in diversity, a new international analysi...
A.
it lacks a coordinated national program
B.
it sets a very low academic standard for students
C.
it relies heavily on the initiative of individual teachers
D.
it attaches too much importance to intensive study of school subjects
【单选题】Throughout the nation"s more than 15,000 school districts, widely differing approaches to teaching science and math have emerged. Though there can be strength in diversity, a new international analysi...
A.
lays stress on quality at the expense of quantity
B.
offers an environment for comprehensive education
C.
encourages learning both in depth and in scope
D.
scratches the surface of a wide range of topics