嵌入式SQL中负责向主语言传递SQL语句执行状态的是（）。
A．主变量
B．游标
C．SQLCA
D．SQL语句
参考答案：C
解析：
我国的温度年、日较差自东南沿海向西北内陆（）。
By the washing machine a pile of dirty clothes, and on the floor of the sitting room were newspapers, magazines and waste paper.
A．laid
B．placed
C．collected
D．lay
