()是作为父母特定角色的特殊素质。
A、心理素质
B、思想道德素质
C、科学文化素质
D、教育素质
参考答案:D
— I think travelling by train is more comfortable than travelling by plane.
—_________. In my opinion, travelling by plane is more comfortable.
A.I agree with you
B.I couldn’t agree more
C.You’re right
D.I’m afraid it isn’t
某次军事演习中,一架无人机停在空中对三个地面目标点进行侦察。已知三个目标点在地面上的连线为直角三角形,两个点之间的最远距离为600米。问无人机与三个点同时保持500米距离时,其飞行高度为()米?
A.500
B.600
C.300
D.400