猫叫综合症是由下面何项引起的（）
A.基因突变
B.染色体数目的改变
C.基因重组
D.染色体结构的改变
参考答案：D
潜心研究钢和玻璃的构造问题和表现力的现代主义建筑大师是（）
The ______ Method at one time was called Classical Method since it was first used in the teaching of the classical languages of Latin and Greek.
