学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.40
所属科目:高中信息技术
有如下Python程序段:
def   guess(cur):
       q=cur
       p=a[cur][1]
     while p!=-1:
               if a[p][0]==a[cur][0]:
                       a[q][1]=a[p][1]
                       p=a[p][1]
            else:
                            q=p
                            p=a[p][1]
a=[[1,3],[1,2],[2,4],[2,5],[4,-1],[3,1]]
head=0;cur=head
while a[cur][1]!=-1:
             guess(cur)
            cur=a[cur][1]
cur=head
while cur!=-1:
            print(a[cur][0],end="")
            cur=a[cur][1]
运行后,则输出的结果是(       
A.1234B.1122C.11223D.11224
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19
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