【单选题】Why did James Cook fail to see the land during his second journey?
A.
Because he sailed too south to see the land.
B.
Because he kept circling Antarctica in his ship.
C.
Because the ice surrounded the continent.
D.
Because the existence of the Antarctica remained unproved.
【单选题】The land was too rocky to ____.
【单选题】Land which is too poor to sustain cattle might be used to raise______.
【多选题】下面属于国家基本公共卫生服务项目的内容是()。
【单选题】Which of the following does not describe the land the Indians were left with?
【单选题】水平面上有一弹簧振子,当它作无阻尼自由振动时,一块橡胶泥正好竖直落在该物体上,设此时刻:①振动物体正好通过平衡位置;②振动物体正好在最大位移处。则 ( )
A.
( A ) ①情况周期改变、振幅改变;②情况周期改变、振幅不变;
B.
( B ) ①情况周期改变、振幅不变;②情况周期改变、振幅改变;
C.
( C )两种情况周期都 改变 ,振幅都不变;
【简答题】请用单词的正确形式填空,朗读本句并提交。 Citizens have the right to know and to _______ the government.