当一个变量占用连续的若干个字节时，______的地址就是变量的地址。
参考答案：第一个字节
动脉导管未闭的左向右分流，超声表现的特征是（）。
A.主动脉向降主动脉的收缩期分流
B.降主动脉向主肺动脉的收缩期分流
C.主动脉向肺动脉的双期分流，舒张期明显小于收缩期
D.降主动脉向肺动脉的双期分流
E.肺动脉向降主动脉的舒张期分流
Our company has been made one of the largest manufacturers in the field of chemical industry.()
A. become, in
B. made. in field of
C. became, in the field
D. been made of, in
