已知集合P={x∈N|1≤x≤10},集合Q={x∈R|x2+x-6≤0},则P∩Q等于[ ]
A.{-2,3}
B.{-3,2}
C.{3}
D.{2}
答案:D
Which of the following is NOT one of the conditions that must be met for a trade to be considered an arbitrage()
A. There is no risk.
B. There are no commissions.
C. There is no initial investment and there is a guaranteed profit.
关于试用期的规定,下列表述错误的是()。
A.约定的试用期不得超过6个月
B.在试用期内,劳动者可随时提出解除劳动合同
C.对再次就业的职业不得约定试用期
D.是否约定试用期由双方当事人协商确定