关于太阳能的叙述错误的是 [] A、来源于核聚变反应 B、能量巨大而且集中 C、

破坏性检验不可能对全部产品都做检验。

根据句意和提示完成句子。

1. Has it reached ______ (火星) yet?

2. The journey has taken ______ (数月).

3. We haven't found life on other______ (行星) yet.

4. The sun and its planet are called ______ (太阳系).

5. It's an ______ (不载人的) mission.

6. The______ (宇航员) have discovered many interesting things ______.

7. The m______ (信息) has been around the country about three years.

按照社会产业部门划分的标准，物业管理属于第三产业，是一种服务性行业。

下列药材需要在装斗前过筛过罗的是（）

A.细粉

B.全草类或种子类饮片

C.细小种子类饮片

D.鲜药

E.贵重饮片

塑性挤出