How did the robot behave at the beginning of the test?
A. It rotated its wings through 90 degrees
B. It twitched(骤然一抽)but gradually gained height
C. It was twitched and broke down
D. It landed not 10ng after the test
查看答案
A.which B.where C.why D.that
A. which
B. where
C. why
D. that
在进行国际间的支付业务中,本国货币还是起主要作用的。()
A. 正确
B. 错误