2021 Beijing Question 4 Single-choice Differentiating 2021_北京 Paper 4.某四面体的三视图如图所示,该四面体的表面积为() A. $\frac { 3 + { \sqrt { 3 } } } { 2 }$B. 4C. $3 + { \sqrt { 3 } }$D. 2 Answer keyA ☆ SaveCan't do it, show the explanation查看原卷 →