【简答题】设有向光滑曲线弧Γ在xOy面上的投影曲线为L(L的正向与Γ的正向相应),且Γ在光滑曲面z=φ(x,y)上,函数P(x,y,z),Q(x,y,z),R(x,y,z)连续,证明
【单选题】The thing that_____ is not whether you fail or not, but whether you try or not.
【单选题】The thing that matters is not whether you fail or not, ________ whether you try or not.
【单选题】The thing that _____ is not whether you fail or not, but whether you try or not. [ ]
【单选题】人体受到病原微生物侵染时,体内的巨噬细胞将其吞噬、消化并清除。这种免疫是 [ ]
【单选题】As a student, what ______is not whether you fail or not, but whether you try or not.
【判断题】材料的耐水性是指材料长期在水的作用下不破坏,强度也不显著降低的性质。
【单选题】The thing that______is not whether you fail or not, but whether you try or not.