The glaciers in the passage are compared to a machine.
A. Right
B. Wrong
C. Not mentioned
查看答案
The Ice Age twenty thousand years ago greatly benefits mankinds in the long term.
A. Right
B. Wrong
C. Not mentioned
Why is it not necessary to provide powered flight in space all the time？
A. Few spacecrafts complete their flight operations.
B. The Earth's gravity cannot be overcome.
C. No future power is needed after the escape speed is reached.
D. Free fall takes the place of the Earth's gravity pull.
It can be inferred from the passage that glaciers were primarily made up of seawater.
A. Right
B. Wrong
C. Not mentioned
Why had they left England？
A. Because of religious problem.
B. To set up a new religion.
C. To learn new farming.
D. Because of the Indians.
微信支付 
支付宝支付