如何看待加州理工大学教授钱璐璐一个月连发两篇nature? - 知乎 However, no student will be allowed to continue work toward the Ph D degree for more than six academic years (24 terms) of graduate enrollment, without an extended registration petition approved by the Dean of Graduate Studies 从功利角度来讲,牛逼程度拉满了。
如何评价 SIGMA 16-300mm F3. 5-6. 7 DC OS 无反镜头? - 知乎 好家伙,这焦段、这尺寸、这重量,已经就差把“就是来收你腾龙的”写在宣传页上了,俗称贴脸开大。其中16 vs 18的优势那是实打实的碾压,从此APSC无反的天涯镜终于不用再在各个系统中“短”人一截了(N家是不是怕冲到自家24-200、28-400所以没给绿灯?俗话说都到齐了真就是缺谁谁尴尬) 不过