Every decision is made within a decision environment, which is defined as the collection of information, alternatives, values. Many decision makers have a(n) 50 to seek more information than requi
氢化亚铜（CuH）是一种难溶的物质，可用CuSO4溶液和“另一种物质”在40ºC~50ºC时反应来制备，CuH不稳定，它既能与HCl反应产生气体，又能在氯气中燃烧
－He looks very hot and dry. －So______if you had a temperature of 40℃. A. would you B. will you C. would have you been D. do you
已知数列{an}的前n项和Sn满足：Sn＋Sm＝Sn＋m，且a1＝1，那么a10＝( ) A．1 B．9 C．10
某生物小组的同学在探究“水分进入植物体内的途径”后，得出了如下结论，你认为不正确的是（ ） A.根尖吸水的主要部位是成熟区 B.根、茎、
若代数式x－3y的值是－2，则代数式1－x+3y的值是 ．
I like him because he makes me______. A.to laugh B.laugh C.laughed
满足
，且
均大于
，
， 则
的最小值为 ．
