沉淀灼烧温度一般达800℃以上,灼烧时常用下列何种器皿:()
A.银坩埚
B.铁坩埚
C.镍坩埚
D.瓷坩埚
参考答案:D
—So why didn't you meet us on Saturday then?
—I'm sorry about that.
—I _________
—I thought you were meeting next Saturday.[ ]
A. get the fact straight
B. have a good nose for it
C. play a trick of the trade
D. get the wrong end of the stick
(2009·方东基础训练题〈一〉)下列关于全国人大的说法不正确的是 ( )
A.全国人大是我国的最高权力机关
B.全国人大是我国的基本政治制度
C.全国人大闭会期间的部分职权由全国人大常委会行使
D.全国人大在我国国家机构居于最高地位,其他机关对它负责,受它监督