房地产市场竞争情况的调研主要包括竞争企业和()两方面内容。
A.竞争产品
B.生产能力
C.社会信誉
D.企业规模
参考答案:A
—Who is the girl over there?
—Isn't that the secretary you want ________ the article?
A.to have type
B.her to type
C.to have typed
D.her type
膜电位由-70mV上升为+30mV的过程称为
A.极化B.去极化C.复极化D.超极化E.超射