、一、选择题：本大题共10小题，每小题5分，共50分。在每小题给出的四个选项中，只有一项是符合题目要求的。
(1) 设
P＝{y|y＝－x2＋1，x∈R}，Q＝{y|y＝2x，x∈R}，则
(A)P<Object: word/embeddings/oleObject1.bin>
Q(B)Q<Object: word/embeddings/oleObject2.bin>
P(C)<Object: word/embeddings/oleObject3.bin>
Q(D)Q<Object: word/embeddings/oleObject4.bin>
<Object: word/embeddings/oleObject5.bin>
(2) 已知i是虚数单位，则
<Object: word/embeddings/oleObject6.bin>
＝(A)<Object: word/embeddings/oleObject7.bin>
(B)<Object: word/embeddings/oleObject8.bin>
(C)3－i(D)3＋i(3) 若某程序框图如图所示，则输出的
p的值是( ...