下列为维护国家主权和领土完整、保卫人民生命财产安全，英勇抗击外国侵略的人物有 ①

孙中山认为，西方国家贫富不均，劳资矛盾尖锐，“社会革命其将不远”，中国应该防患于未然，因此他提出了 [ ]

A、民族主义

B、民权主义

C、民生主义

D、民粹主义

I had a interesting dream last night. I dreamedthat I took part in a race. At first, I could not to run very fast and fell behind. So I didn’t lose heart and keptrunning. All the students on the playground cheer me on, “ Come on!” I was so encouraging that I ran faster and fast till I caught up all the other runners. I felt as if flying like a superman. In the end, I got to the finishing line first.I won the race. I felt very proudly of myself. Many of my classmate threw me up into the air. Just at that timeI woke up and found me still in bed!

“仓至仓”条款是海运货物保险期限的基本条款，它规定保险人承担责任的（）

A.空间范围

B.时间范围

C.空间和时间范围

D.尺度

大气污染防治的主要方法？

什么是ABS塑料？ABS塑料有什么主要特点和用途？