请教2道语法题

红脸蛋

The glass tube in a fluorescent lamp contains mercury vapor under small pressure.

答案是"small"，请教如何修改？

The Mississippi, the longest river in the US, begins as small, clear stream in northwestern Minnesota.

答案是“as small”，这个又该如何修改呢？

[此贴子已经被作者于2005-1-4 17:46:21编辑过]

xuli_123

以下是引用红脸蛋在2005-1-4 15:09:00的发言：

The glass tube in a fluorescent lamp contains mercury vapor under small pressure.

答案是"small"，请教如何修改？

small-----low

The Mississippi, the longest river in the US, begins as small, clear stream in northwestern Minnesota.

答案是“as small”，这个又该如何修改呢？

as small------as a small

numberX

right！

红脸蛋

谢谢楼上