选词填空。

1. It's ______(rainy/rain) today.

2. London is _______(windy/wind) today.

3. It's ________(snow/snowy) in Beijing today.

4. It's _________(cloudy/cloud) in Lhasa today.

5. It's ________ (sun/sunny) in Harbin today.

6. It's ________(hot/hat) today.

对井田制的解读主要有以下观点：是奴隶制度下的土地国有制；是奴隶制度下的农村公社制；是封建制度下的土地领主制；是封建制度下的家族公社制或农村公社制。造成上述分歧的客观原因主要是（）。

A.史料证据匮乏与多元史观

B.历史可以任人诉说

C.百家争鸣的需要

D.西周土地买卖频繁，难以确认