一阶矩曲线下的面积的符号是()
A.AUMC
B.AUC
C.MRT
D.VRT
E.MAT
参考答案:A
书面表达:根据所给汉语提示填空,完成短文,每空一词。
今天我和朋友们去了海滩。我们骑自行车去的那儿。天气很热而且阳光充足。我们在水里游泳和玩耍。桑迪捡了一些贝壳。我们在快餐店吃了汉堡包。我们在海边玩得很开心。
Today, I went to the 1_____ with my friends. We went there 2 __ bike. It was 3_____ and sunny.
We swam and 4_____ in the water. Sandy collected some shells. We ate 5_____ at a restaurant. We
had fun at the beach.
职能式组织的缺点是( )。
A.一头负责
B.分工太细
C.体系复杂
D.专业水平低