【多选题】Web of Science 提供的检索方式有( )
【单选题】混合物中组分 i 的逸度的完整定义式是
A.
d G ( ___ ) i =RTdln f ( ^ ) i , [ f ( ^ ) i /(Y i P)]=1
B.
d G ( ___ ) i =RTdln f ( ^ ) i , [ f ( ^ ) i /P]=1
C.
dG i =RTdln f ( ^ ) i , f i =1
D.
d G ( ___ ) i =RTdln f ( ^ ) i , f ( ^ ) i =1
【简答题】如果a、b表示旋转椭球的两个轴, 。请说明c的几何意义。
【简答题】根据短文,判断正误(正确写“T”,错误写“F”)。 Jim wants to borrow a book from a library. He comes to the library with Jack. They can't see any people there, but only some robots (机器人). Then Jim says to one robot, 'I, giv...
【简答题】Jim likes reading very much. One day, he wants to borrow a book from the . He goes there Jack. They can’t see librarians, only some robots (机器人) standing there. Then Jim says to one of , “Hey, give me...
【单选题】以下不是真丝绸织物所具有的特点的是( )。
【单选题】web of science对检索结果进行排序的方式不包括