单项选择题

The 15 plates of the Earth are formed from________.

A．the oceanic crusts and continental crusts
B．the crusts and the mantle
C．the crusts and the top and solid part of the mantle
D．the continental crests and the solid part of the mantle

<上一题目录下一题>

热门试题

单项选择题

According to the second paragraph, the formation of the Atlantic Ocean is the example of________.

A．spreading contacts
B．the influence of volcanic eruptions
C．converging contacts
D．transform contacts

单项选择题

What is the main idea of this passage

A．It gives a general introduction to some of the most famous realistic writers in last century.
B．It mainly reviews the difference between the fictional world in Oates's novels and the real world.
C．It outlines the career life of Joyce Carol Oates, one of the most famous American writers.
D．It focuses on the writing style of some famous realistic American writers.