果蝇体细胞中的染色体组成可以表示为()
A.3+X或3+Y
B.6+X或6+Y
C.6+XX或6+YY
D.6+XX或6+XY
参考答案:D
The father along with his children ______ solving word puzzles.
A.are like
B.is like
C.like
D.likes
什么是艺术批评?