The correct answer here is A. An exception will be thrown, indicating that you are trying to perform an update operation on a read-only connection.

会抛出一个异常，表示您正在试图对一个只读连接执行更新。

youdao

And since waves generally move in the same direction (the wake from a boat is an exception), imagine what will happen if the waves are coming from your right and you can only breath to the right.

由于波浪一般都朝着一个方向（除非他们碰到船），假设，波浪是从你的右边来，但是很不幸，你只会右侧换气，那会咋样？

youdao

This exception is thrown if you are attempting to change a value in a data column that is read-only.

此异常在尝试更改只读数据列中的值时引发。

youdao

This exception is thrown if you are attempting to change a value in a data column that is read-only.

此异常在尝试更改只读数据列中的值时引发。

youdao