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【单选题】
和谐内5型内燃机车制动机型号()。A.
CCBⅠ
B.
CCBⅡ
C.
克诺尔
D.
DK1
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皮皮学刷刷变学霸
举一反三
【单选题】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
【单选题】How did the robot behave at the beginning of the test?
A.
It rotated its wings through 90 degrees．
B.
It twitched but gradually gained height．
C.
It was twitched and broke down．
D.
It landed not long after the test．
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