下载APP
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Task 1Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40．For each question or statement there are 4 choices marked A, B, C, and...
A.
To travel as fast as it can.
B.
To overcome the Earth gravity.
C.
To get away from the air resistance.
D.
To have strong power in its operation.
【单选题】As there is always the Earth's gravitational(地心引力的)pull, people ______.
A.
accept it without questioning it
B.
never notice its presence
C.
hardly think about how to use it
D.
often try to escape from it