人力资源规划的程序首先就是要调查、收集和整理涉及企业战略决策和经营环境的各种信息。
参考答案:对
I _____ Spanish quite fluently, but I haven’t got a chance to use it since I moved to Brazil.
A.spoke
B.will speak
C.have spoken
D.speak
下列由左边到右边的变形,是分解因式的有( )
①a2-9=(a+3)(a-3)
②(m+2)(m-2)=m2-4
③a2-b2=(a+b)(a-b)+1
④2πR+2πr=2π(R+r)
A.1个
B.2个
C.3个
D.4个