写出下列化合物的结构式。[tex=11.786x1.286]nlYqKMxQ+LWXlI1jMA/HrIPs3Fw4Xs0NW71Li8FP+Nr6BzDOjXfnsZ8ocu8IwIm0FVLKqHkk3/7xqSkmnIE831JumS8ERP6y75Nzq0Pz+In3OuS1sTH8AT4rSicz55pF[/tex]

写出下列化合物的结构式。[tex=11.786x1.286]nlYqKMxQ+LWXlI1jMA/HrIPs3Fw4Xs0NW71Li8FP+Nr6BzDOjXfnsZ8ocu8IwIm0FVLKqHkk3/7xqSkmnIE831JumS8ERP6y75Nzq0Pz+In3OuS1sTH8AT4rSicz55pF[/tex]

最早发展、时间尺度最长（1948年-至今）的全球大气再分析资料是（）。 A: NCEP/NCAR B: NCEP/DOE C: ECMWF ERA-40, ERA-Interim D: JMA JRA-25，JRA-55

在例25浙江省基于多模式的降水量预报研究中，没有选择（ ）中心的降水量预报资料。 A: ECMWF B: NCEP C: JMA D: CMA

下列分子中, 具有极性的分子是 未知类型：{'options': ['[tex=1.571x1.214]IdmmpbyLRsi4hpV/7vLIedaN8mvIYVWH19rjnRi0uKg=[/tex]', '[tex=2.071x1.214]AVRphJyKLxf0de2FW7GbwrUIf1HIpYgzp30PTnEm4pY=[/tex]', '[tex=2.214x1.214]nlYqKMxQ+LWXlI1jMA/HrG9xRFOoQcApr8hhFsJmrIM=[/tex]', '[tex=2.071x1.214]kzcSeH5nCo3sBvtYJNm9Jxhb7mIm+GZrbe2ryiVG90s=[/tex]'], 'type': 102}

设[tex=3.0x1.214]zMcNVmPy/JMa/Wqisu5IxA==[/tex]为三事件，用[tex=3.0x1.214]iqlS3ynw+UMiUv/Oo/fWkg==[/tex]的运算关系表示事件:[tex=0.786x1.0]Yn3GgEZev6SOu2r4v1WnCw==[/tex]与[tex=0.786x1.0]ri6gmnf1+J9dGqG5/1sV6A==[/tex]都发生，面[tex=0.714x1.0]J/aA9EEo0KmJFnWWfX7LmQ==[/tex]不发生.

for i in range(b.max_row): for j in range(b.max_column): print(b.cell(row=i,column=j).value)上面语句运行的结果是：__________。 A: 1 1 1 1 1 1 1 1 1 1 B: 1111111111 C: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D: 出现异常

【单选题】CDMA通信的基站,假定基站A的码片序列是+1 +1 +1 -1 -1 +1 -1 -1,基站发射bit为101时,实际发射的信号是 A. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 B. +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 +1 +1 +1 -1 -1 +1 -1 -1 C. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 D. –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1

for i in range(1,11): for j in range(1,11): b.cell(row=i,column=j).value=1 #b是一个工作表对象for i in range(1,11): for j in range(1,11): print(b.cell(row=i,column=j).value,end=" ") print()上面程序代码运行的结果是（）。 A: 1 B: 1 1 1 1 1 1 1 1 1 1 C: 1111111111 D: 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

下列哪个码片序列不能用于CDMA通信 A: ( -1 -1 -1 +1 +1 -1 +1 +1 ) B: ( -1 -1 +1 -1 +1 +1 +1 -1 ) C: ( -1 +1 -1 +1 +1 -1 -1 -1 ) D: ( -1 +1 -1 -1 -1 -1 +1 -1 )