【单选题】Perseverance is a kind of quality and that is _______ it takes to do anything well.
【多选题】HTC、VIVE等头戴显示设备可以实现哪些功能?
【简答题】自然界的水有三种形态,水蒸气属于 态的水;露、雾属于 态的水;霜、雪、冰属于 态的水。
【判断题】对于 微分方程 ,若 ,则 是微分方程的一个特解。
【判断题】pleasure与please两个单词都包含齿龈硬腭摩擦音。
【单选题】Nothing lay ahead of us but exertion, struggle, and perseverance. ( Para.16 )
A.
What we are confronted with is no exertion, struggle or perseverance.
B.
The kind of life that was waiting for us at school would be full of exertion, struggle and perseverance.
C.
We would have nothing, no exertion, no struggle or no perseverance.