有“世界屋脊”之称的高原是______ 高原.
青藏高原起伏平缓,雪山连绵,冰川广布,是我国面积最大,世界海拔最高的高原,有“世界屋脊”之称.
故答案为:青藏.
________ had been done, the working efficiency of the employees still remained low.
A.Though
B.Despite the fact that
C.Despite
D.Despite what
今年哥弟俩人的岁数加起来是55岁,曾经有一年,哥哥的岁数是今年弟弟的岁数,那时哥哥的岁数恰好是弟弟的两倍,问哥哥今年年龄是多大( )
A.33
B.22
C.11
D.44